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A1 noun #2,748 most common 9 min read

元素

genso
Practice it Examples Notes & Tips 元素 in 30 Seconds
Explanation 元素 in your Level:
At the A1 level, you don't need to use the word '元素' (gensō) often, but it's good to know it means 'element' in science. Think of it like the basic pieces of a Lego set for the whole world. For example, 'Water is made of elements.' In Japanese, you might see this word in a simple science book or a museum. It is a noun. You can say 'This is an element' (これは元素です - Kore wa gensō desu). Just remember that it is a special word for science class, not for everyday things like 'the elements of a story.'
At the A2 level, you can start using '元素' (gensō) to describe simple things in nature. You might learn that 'Hydrogen' (水素 - suisō) or 'Oxygen' (酸素 - sansō) are types of 元素. You will notice that many Japanese element names end with '素' (sō), which is the same kanji as in 元素. This makes it easier to remember! You can use it in sentences like 'There are many elements in the world' (世界にはたくさんの元素があります - Sekai ni wa takusan no gensō ga arimasu). It's a formal word, so you'll mostly see it in writing or hear it in educational videos.
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At the B1 level, you should distinguish between '元素' (gensō) and '要素' (yōsō). Both mean 'element,' but 元素 is for chemistry and 要素 is for abstract things like 'elements of success.' You can now use 元素 in more complex sentences, such as discussing the periodic table (周期表 - shūkihyō). You might say, 'I am memorizing the symbols for the elements' (元素記号を覚えています - Gensō kigō o oboete imasu). You will also encounter it in news about the environment or new technology, such as 'rare elements' (希少元素 - kiyū gensō) used in phones.
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At the B2 level, you can use '元素' (gensō) in technical or academic discussions. You should understand compound words like '元素分析' (elemental analysis) or '放射性元素' (radioactive element). You can explain the difference between an element (the type) and an atom (the particle). For example, 'An element is defined by its atomic number' (元素は原子番号によって定義されます - Gensō wa genshi bangō ni yotte teigi saremasu). You are expected to use this word correctly in essays about science, nature, or industry without confusing it with similar-sounding words like '幻想' (gensō - fantasy).
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At the C1 level, your understanding of '元素' (gensō) should include its historical and philosophical nuances. You might discuss the 'Four Elements' theory (四大元素説 - shidai gensō setsu) in literature or history. You can use the word in high-level scientific contexts, such as discussing nucleosynthesis in stars or the synthesis of transuranium elements (超ウラン元素 - chō-uran gensō). You should be comfortable with formal registers and specialized terminology, such as '遷移元素' (transition elements) or '典型元素' (main-group elements), and be able to read academic papers where these terms appear frequently.
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At the C2 level, you have a near-native grasp of '元素' (gensō). You can engage in deep scientific debates or write professional-grade reports on chemistry or physics. You understand the subtle linguistic choice of using '元素' versus '成分' in complex chemical mixtures. You can appreciate the nuances of how the term is used in specialized fields like geochemistry or astrophysics. You are also aware of the cultural impact of discoveries like 'Nihonium' and can discuss the geopolitical implications of 'rare earth elements' (希土類元素 - kidorui gensō) using sophisticated vocabulary and grammar structures.
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Practice it Examples Notes & Tips

元素 in 30 Seconds

  • Gensō refers to a chemical element, the most basic form of matter that cannot be broken down further by chemical reactions.
  • It is a formal, scientific term used in chemistry, physics, and education, primarily associated with the periodic table of elements.
  • Do not confuse it with 'yōsō' (abstract element/factor) or 'genshi' (the physical atom particle), as 'gensō' describes the type of substance.
  • Common examples include Hydrogen, Oxygen, and Gold. It is often found in compound words like 'gensō kigō' (chemical symbol).

The Japanese word 元素 (げんそ - gensō) is a fundamental scientific term that translates directly to 'chemical element.' In the realm of chemistry and physics, it refers to a pure substance consisting entirely of atoms that all have the same number of protons in their atomic nuclei. Unlike compounds, a 元素 cannot be broken down into simpler substances using chemical methods. This concept is the bedrock of our understanding of the physical universe, categorizing the building blocks of matter into the organized structure known as the Periodic Table (周期表 - shūkihyō).

Etymological Breakdown
元 (Gen): This kanji signifies 'origin,' 'source,' or 'base.' It represents the starting point of something.
素 (Sō): This character denotes 'elementary,' 'plain,' 'unadorned,' or 'principle.' It refers to the most basic, irreducible state of a material.
Scientific Classification
In a Japanese science classroom, students learn that there are currently 118 recognized 元素. These range from the lightest, Hydrogen (水素 - suisō), to heavy, synthetic elements like Oganesson (オガネソン). Each 元素 is identified by its unique atomic number (原子番号 - genshi bangō).

「水素は宇宙で最も豊富な元素です。」
(Suisō wa uchū de mottomo hōfu na gensō desu.)
Hydrogen is the most abundant element in the universe.

Understanding 元素 is not just for scientists; it is essential for understanding the world around us. For example, the oxygen we breathe (酸素 - sansō), the iron in our blood (鉄 - tetsu), and the carbon (炭素 - tanso) that forms the basis of life are all specific types of 元素. In Japanese, most common elements have names ending in 'so' (素), such as nitrogen (窒素 - chisso) and fluorine (フッ素 - fussō), though metals often follow different naming conventions.

「新しい元素が発見されました。」
(Atarashii gensō ga hakken saremashita.)
A new element has been discovered.

Common Categories
  • 金属元素 (Kinzoku gensō): Metallic elements like gold, silver, and copper.
  • 非金属元素 (Hikinzoku gensō): Non-metallic elements like oxygen and carbon.
  • 希有元素 (Kiyū gensō): Rare elements or rare earth elements.

The term 元素 is strictly scientific. If you are talking about 'elements' of a story or 'elements' of a plan, you would use 要素 (yōsō) instead. This distinction is crucial for clear communication in Japanese. 元素 belongs to the laboratory, the textbook, and the stars, representing the physical essence of the material world. It is the 'DNA' of matter itself, providing the fundamental code from which all complexity arises.

「周期表には100以上の元素が並んでいます。」
(Shūkihyō ni wa hyaku ijō no gensō ga narande imasu.)
More than 100 elements are listed on the periodic table.

Using 元素 (gensō) correctly requires a focus on scientific and material contexts. It is a formal noun that typically appears in educational, academic, or technical discussions. Because it refers to a specific scientific category, it is rarely used in casual slang, but it is a staple of news reports concerning technology, environment, and space exploration.

1. Describing Composition

The most common way to use 元素 is to describe what a substance is made of. You will often see the pattern 「[Substance]は[Element Name]という元素でできている」 (Substance is made of the element called...).

「ダイヤモンドは炭素という元素からできています。」
(Daiyamondo wa tanso to iu gensō kara dekite imasu.)
Diamonds are made from the element called carbon.

2. Discussing the Periodic Table

When talking about chemistry, 元素 is often paired with 周期表 (shūkihyō - periodic table) or 記号 (kigō - symbol). The term 元素記号 (gensō kigō) refers to the one or two-letter abbreviations like 'H' for Hydrogen or 'Au' for Gold.

「金の元素記号はAuです。」
(Kin no gensō kigō wa Au desu.)
The chemical symbol for gold is Au.

3. Industrial and Economic Contexts

In modern news, you might hear about レアアース (rare earth), which are referred to in Japanese as 希少元素 (kiyū gensō) or レアメタル (rare metals). These are critical for manufacturing smartphones and electric vehicles.

4. Compound Nouns

元素 often acts as a prefix or suffix in technical terms:

  • 元素分析 (Gensō bunseki): Elemental analysis.
  • 放射性元素 (Hōshasei gensō): Radioactive element.
  • 有害元素 (Yūgai gensō): Harmful elements (like lead or mercury).
  • 主要元素 (Shuyō gensō): Major elements.

When writing, 元素 is almost always written in kanji. While the reading is straightforward, the second kanji 素 is also found in words like 素材 (sozai - material) and 素朴 (soboku - simple/rustic), which helps reinforce the idea of something being 'basic' or 'raw.'

You will encounter 元素 (gensō) in specific environments where science, education, and technology intersect. While not a word used to buy groceries or talk about the weather, it is ubiquitous in the following settings:

1. Educational Settings (Schools and Universities)

From junior high school onwards, Japanese students study 理科 (rika - science) and 化学 (kagaku - chemistry). The teacher will frequently use 元素 when explaining the composition of matter. Students are often required to memorize the 元素周期表 (gensō shūkihyō), often using mnemonics like 'Su-Hai-Ri-Be...' (for H, He, Li, Be...).

「今日の授業では、アルカリ金属元素について学びます。」
(Kyō no jugyō de wa, arukari kinzoku gensō ni tsuite manabimasu.)
In today's class, we will learn about alkali metal elements.

2. Science Documentaries and News

NHK and other Japanese broadcasters often air programs about space (宇宙 - uchū) or the environment. When discussing the birth of stars or the pollution of soil, 元素 is the standard term used to describe the chemicals involved.

「恒星の内部で重い元素が作られます。」
(Kōsei no naibu de omoi gensō ga tsukuraremasu.)
Heavy elements are created inside stars.

3. Museums and Science Centers

Places like the National Museum of Nature and Science in Ueno, Tokyo, have extensive exhibits on the 元素. Interactive displays allow visitors to see samples of different elements and learn about their properties.

4. Medical and Health Contexts

When discussing nutrition or toxicology, doctors or health experts might refer to 微量元素 (biryō gensō - trace elements) like zinc or magnesium that are necessary for the body, or 有害元素 (yūgai gensō) like mercury.

「健康を維持するためには、適切な微量元素の摂取が必要です。」
(Kenkō o iji suru tame ni wa, tekisetsu na biryō gensō no sesshu ga hitsuyō desu.)
To maintain health, proper intake of trace elements is necessary.

5. Literature and Pop Culture (Sci-Fi)

In science fiction anime or manga (like 'Dr. Stone' or 'Fullmetal Alchemist'), characters often discuss the chemical makeup of objects. While 'Fullmetal Alchemist' uses the 'Four Elements' theory (which uses the word 四大元素 - shidai gensō), modern sci-fi uses the term in its proper chemical sense.

While 元素 (gensō) is a straightforward scientific term, Japanese learners (and sometimes native speakers) can trip up on its specific usage boundaries. Here are the most frequent pitfalls:

1. Confusing 元素 (Gensō) with 要素 (Yōsō)

This is the #1 mistake. Both translate to 'element' in English, but they are not interchangeable.

  • Wrong: 「成功の元素は努力です。」 (The chemical element of success is effort.)
  • Correct: 「成功の要素は努力です。」 (The factor/element of success is effort.)

Rule of thumb: If you can replace 'element' with 'factor,' 'component,' or 'part' in English, use 要素 (yōsō). If you are talking about the Periodic Table, use 元素 (gensō).

2. Confusing 元素 (Gensō) with 原子 (Genshi)

As mentioned before, 元素 is the type of matter, while 原子 is the unit of matter. In English, we often say 'The oxygen atom,' but in Japanese, you must be careful.

  • 元素: The abstract concept of Oxygen.
  • 原子: The physical particle consisting of 8 protons.

If you say 「元素が衝突する」 (elements collide), it sounds a bit strange; you usually mean 「原子が衝突する」 (atoms collide).

3. Misusing 'The Four Elements'

In Western philosophy (Earth, Air, Fire, Water), we call these 'elements.' In Japanese, this specific historical/fantasy concept is called 四大元素 (Shidai Gensō). However, in modern daily life, if you call water a 元素, a Japanese person will correct you, saying water is a 化合物 (kagōbutsu - compound) made of Hydrogen and Oxygen.

4. Pronunciation Confusion

Be careful not to confuse the pronunciation with 幻想 (gensō), which means 'fantasy' or 'illusion.' While they sound identical, the context usually makes the meaning clear, but in writing, the kanji are completely different (元素 vs 幻想).

「彼は元素の研究をしている。」 (He is researching elements.)
「彼は幻想の中に生きている。」 (He is living in a fantasy.)

5. Overusing it in Non-Scientific Contexts

In English, we might say 'There's an element of truth in that.' In Japanese, you would never use 元素. You would use 「～の面がある」 (there is an aspect of...) or 「少しは～だ」 (is a little bit...). 元素 is strictly for chemistry.

To master 元素 (gensō), you must understand how it relates to and differs from other words that translate to 'element,' 'part,' or 'substance.' Here is a breakdown of the most similar terms:

1. 要素 (ようそ - Yōsō)

Meaning: Factor, component, element (abstract).

Difference: This is the non-scientific 'element.' Use this for ingredients of success, parts of a plan, or features of a design.

「デザインの重要な要素」 (An important element of design).

2. 成分 (せいぶん - Seibun)

Meaning: Ingredient, component, constituent.

Difference: Use this for things like food ingredients, chemical compositions of a mixture, or the 'active ingredients' in medicine.

「この薬の有効成分」 (The active ingredients of this medicine).

3. 原子 (げんし - Genshi)

Meaning: Atom.

Difference: As discussed, this is the physical particle. 元素 is the 'species' or 'type,' while 原子 is the individual 'individual.'

「原子核」 (Atomic nucleus).

4. 物質 (ぶっしつ - Busshitsu)

Meaning: Substance, matter, material.

Difference: A general term for any physical matter. An element is a type of 物質, but so is a compound like water or a mixture like air.

「危険な物質」 (A dangerous substance).

5. 素材 (そざい - Sozai)

Meaning: Raw material, resource.

Difference: Used for materials used in making something, like wood for a house or data for a report.

「料理の素材」 (Ingredients/materials for cooking).

In summary, while English uses 'element' for many things, Japanese is much more precise. Use 元素 only when you are looking at a periodic table or discussing the fundamental building blocks of the universe at a chemical level.

How Formal Is It?

Difficulty Rating

Grammar to Know

Noun + でできている (Made of)

Noun + という + Noun (Called...)

Noun + に含まれる (Contained in)

Passive voice (for scientific discovery)

Noun + にとって (For/To)

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Examples by Level

1

これは元素です。

This is an element.

Noun + です (Simple state of being).

2

水には元素があります。

There are elements in water.

Noun + には + Noun + があります (Existence in a location).

3

酸素は大切な元素です。

Oxygen is an important element.

Topic は Adjective + Noun です.

4

元素の名前を教えてください。

Please tell me the names of the elements.

Noun + を + て-form + ください (Request).

5

この本は元素の本です。

This book is a book about elements.

Noun + の + Noun (Possession/Topic).

6

金も元素の一つです。

Gold is also one of the elements.

Noun + も + Noun + の一つです (One of...).

7

元素はたくさんあります。

There are many elements.

Adverbial use of たくさん.

8

理科で元素を習いました。

I learned about elements in science class.

Noun + で (Location of action) + Noun + を + Verb.

1

水素は一番軽い元素です。

Hydrogen is the lightest element.

Superlative: 一番 + Adjective.

2

元素記号を覚えなければなりません。

I must memorize the element symbols.

Verb + なければなりません (Obligation).

3

鉄は有名な元素です。

Iron is a famous element.

Na-adjective + Noun.

4

空気はいろいろな元素でできています。

Air is made of various elements.

Noun + でできている (Made of).

5

どの元素が一番好きですか？

Which element do you like the most?

Question word どの + Noun.

6

新しい元素を見つけるのは難しいです。

Finding a new element is difficult.

Verb + のは + Adjective (Nominalization).

7

周期表には118の元素があります。

There are 118 elements on the periodic table.

Number + の + Noun.

8

この元素は体にいいです。

This element is good for the body.

Noun + にいい (Good for...).

1

元素と原子の違いを説明してください。

Please explain the difference between an element and an atom.

Noun と Noun の違い (Difference between X and Y).

2

希少元素はスマートフォンに使われています。

Rare elements are used in smartphones.

Passive voice: 使われています.

3

炭素は生命にとって不可欠な元素です。

Carbon is an indispensable element for life.

Noun + にとって (For / From the perspective of).

4

彼は元素の周期性を研究しています。

He is researching the periodicity of elements.

Noun + の + Noun (Abstract relationship).

5

この物質には有害な元素が含まれています。

This substance contains harmful elements.

Noun + が含まれている (Is contained).

6

元素記号は世界共通の言葉です。

Element symbols are a universal language.

Noun + は + Noun + です.

7

実験で新しい元素の反応を観察しました。

I observed the reactions of a new element in an experiment.

Noun + を + 観察する (Observe).

8

すべての物質は元素から構成されています。

All matter is composed of elements.

Noun + から構成されている (Composed of).

1

遷移元素は複雑な化学的性質を持っています。

Transition elements have complex chemical properties.

Complex noun phrases.

2

その元素は放射能を持っているため、扱いに注意が必要です。

Because that element is radioactive, care is needed in handling it.

Verb + ため (Reason/Cause).

3

元素の含有量を正確に測定しなければなりません。

The element content must be measured accurately.

Adverbial use of 正確に.

4

古代ギリシャでは、万物は四つの元素からなると考えられていました。

In ancient Greece, it was thought that all things consisted of four elements.

Passive potential: 考えられていました.

5

ニホニウムは日本で発見された113番目の元素です。

Nihonium is the 113th element discovered in Japan.

Relative clause: 日本で発見された.

6

元素の配列には一定の法則があります。

There is a certain law in the arrangement of elements.

Noun + には + Noun + があります.

7

特定の元素が欠乏すると、健康に悪影響を及ぼします。

A deficiency of certain elements has a negative impact on health.

Conditional: Verb + と.

8

科学者は未知の元素を合成しようと試みています。

Scientists are attempting to synthesize unknown elements.

Volitional form + と試みる (Attempt to...).

1

重元素の合成は、超新星爆発の際に行われます。

The synthesis of heavy elements occurs during supernova explosions.

Noun + の際 (At the time of).

2

同位体とは、原子番号が同じで質量数が異なる元素のことです。

Isotopes are elements with the same atomic number but different mass numbers.

Noun + とは...のことです (Definition).

3

希土類元素の安定供給は、現代産業において極めて重要です。

The stable supply of rare earth elements is extremely important in modern industry.

Noun + において (In/At - formal).

4

その元素は非常に不安定で、瞬時に崩壊してしまいます。

That element is extremely unstable and decays instantly.

Verb + てしまう (Completion/Regret).

5

元素の電子配置が、その化学的反応性を決定づけます。

The electron configuration of an element determines its chemical reactivity.

Subject + が + Object + を + Verb.

6

近代化学の父、ラヴォアジェは元素の定義を確立しました。

Lavoisier, the father of modern chemistry, established the definition of an element.

Apposition: Noun, Noun.

7

超ウラン元素は、自然界にはほとんど存在しません。

Transuranium elements hardly exist in nature.

Adverb: ほとんど...ない (Hardly).

8

元素の起源を探ることは、宇宙の歴史を紐解くことと同義です。

Exploring the origin of elements is synonymous with unraveling the history of the universe.

Nominalization: Verb + こと.

1

元素の周期律は、自然界に潜む深遠な秩序を如実に物語っています。

The periodic law of elements vividly tells of the profound order hidden in nature.

Literary verb: 物語る (To tell/narrate).

2

核融合反応によって、軽元素からより重い元素へと転換がなされます。

Through nuclear fusion reactions, a transformation from light elements to heavier elements is carried out.

Passive: なされる (Formal version of する).

3

特定の元素の同位体比を分析することで、考古学的な年代測定が可能となります。

By analyzing the isotope ratios of specific elements, archaeological dating becomes possible.

Means/Method: ことで.

4

元素のスペクトル分析は、遠方の天体の組成を解明する強力な手法です。

Spectral analysis of elements is a powerful method for elucidating the composition of distant celestial bodies.

Formal noun: 手法 (Method).

5

超重元素の安定の島を探求することは、原子核物理学の最前線の一つです。

Exploring the 'island of stability' of superheavy elements is one of the frontiers of nuclear physics.

Noun + の最前線 (Frontier/Forefront).

6

錬金術師たちは卑金属を貴金属という元素に変えようと腐心しました。

Alchemists strove to change base metals into the element known as precious metal.

Idiom: 腐心する (To take great pains/strive).

7

微量元素の生体内における動態は、依然として多くの謎に包まれています。

The dynamics of trace elements within living organisms remain shrouded in many mysteries.

Still/As yet: 依然として.

8

元素という概念の変遷を辿れば、人類の科学的認識の歩みが分かります。

If you trace the transition of the concept of 'element,' you can understand the progress of human scientific perception.

Conditional: Verb + れば.

Common Collocations

元素記号 (gensō kigō)
元素周期表 (gensō shūkihyō)
希少元素 (kiyū gensō)
有害元素 (yūgai gensō)
主要元素 (shuyō gensō)
元素分析 (gensō bunseki)
放射性元素 (hōshasei gensō)
遷移元素 (sen'i gensō)
典型元素 (tenkei gensō)
微量元素 (biryō gensō)

Common Phrases

元素を発見する (Discover an element)
元素を特定する (Identify an element)
元素から成る (Consist of elements)
元素が結合する (Elements combine)
未知の元素 (Unknown element)
新しい元素 (New element)
元素の性質 (Properties of an element)
元素の配列 (Arrangement of elements)
元素の起源 (Origin of elements)
元素を分類する (Classify elements)

Often Confused With

元素 vs 要素 (yōsō)

元素 vs 幻想 (gensō)

元素 vs 原子 (genshi)

Idioms & Expressions

"四大元素 (The four elements - Earth, Air, Fire, Water)"
"五行 (The five elements in Eastern philosophy - though different kanji, related concept)"
"元素の海 (Sea of elements - poetic/scientific metaphor)"
"元素のダンス (Dance of elements - metaphorical for reactions)"
"元素の王国 (Kingdom of elements - educational term)"
"元素の不思議 (The wonder of elements)"
"元素のパズル (The puzzle of elements)"
"元素の絆 (The bond of elements - chemical bonding)"
"元素の旅 (Journey of elements - through the universe)"
"元素の力 (The power of elements)"

Easily Confused

元素 vs

元素 vs

元素 vs

元素 vs

元素 vs

Sentence Patterns

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How to Use It

Kanji Nuance

The '素' in 元素 implies something that is 'raw' or 'fundamental.'

Abstract vs Concrete

Use 元素 for the abstract category of a chemical substance.

Scientific Precision

In Japanese, being precise about 元素 vs 要素 is a sign of good language proficiency.

Common Mistakes

Tips

Kanji Clue

The kanji 素 (sō) often appears in words related to 'basic' or 'unprocessed' things. Seeing it in 元素 helps you remember it's the most basic form of matter. This character is also in 'sozai' (material) and 'soboku' (simple). Use this connection to build your vocabulary.

Context is King

Only use 元素 in a scientific or material context. If you want to say 'an element of surprise,' use 'odoroki no yōsō.' If you want to say 'the elements of the crime,' use 'hanzai no kōsei yōsō.' Reserve 元素 for the lab and the periodic table.

The 'So' Connection

Associate the 'so' in 元素 with the 'so' in 'suisō' (hydrogen) and 'sansō' (oxygen). Since these are the most famous elements, the shared kanji and sound will lock the word into your memory. It's a built-in mnemonic system in the Japanese language.

Nihonium Pride

Mentioning Nihonium is a great way to start a conversation with a Japanese science student. It shows you know about Japan's contributions to modern science. It's one of the few times 'gensō' might come up in a friendly chat. It's a point of modern cultural literacy.

Compound Power

Learn 元素 as part of compounds like 元素記号 (symbol) or 元素分析 (analysis). Compound nouns are very common in formal Japanese. Learning them as single units is often easier than trying to build them from scratch. It also makes your Japanese sound more natural.

News Watch

Listen for 元素 in news reports about 'rare metals' or 'environmental pollution.' You'll often hear about 'heavy metal elements' (jūkinzoku gensō) like lead or mercury. These reports provide excellent real-world listening practice. It helps you hear the word in a serious, formal tone.

Formal Tone

Because 元素 is a scientific term, it naturally carries a formal tone. Use it when you want to sound precise and educated. In casual settings, people might just say 'mono' (thing) or 'seibun' (ingredient), but 元素 shows a higher level of vocabulary. It's a 'smart' word.

Kanji Precision

Be careful not to write 幻想 (fantasy) by mistake. They sound the same (gensō). Always double-check your kanji selection on your keyboard. 元素 has 'origin' and 'plain,' while 幻想 has 'illusion' and 'thought.' The visual difference is huge.

Science Manga

Read science-themed manga like 'Dr. Stone' to see 元素 used in action. It's a fun way to see how scientific terms are integrated into storytelling. You'll see the kanji 元素 frequently in the dialogue. It bridges the gap between textbook and entertainment.

Isotopes and More

Once you master 元素, learn 'dōitai' (isotope). This is the next logical step in scientific Japanese. It allows you to discuss more complex topics like carbon dating or nuclear energy. It expands your 'gensō' knowledge into the realm of advanced physics.

Memorize It

Word Origin

Sino-Japanese (Kango)

Cultural Context

Japan is a leader in using rare elements for electronics.

The first element discovered in Asia, named after 'Nihon' (Japan).

Students learn the periodic table in middle school.

Practice in Real Life

Real-World Contexts

Conversation Starters

"一番好きな元素は何ですか？ (What is your favorite element?)"

"ニホニウムという元素を知っていますか？ (Do you know the element called Nihonium?)"

"周期表を覚えるのは大変でしたか？ (Was it hard to memorize the periodic table?)"

"希少元素がスマホに使われているって知ってた？ (Did you know rare elements are used in smartphones?)"

"水はどんな元素でできていますか？ (What elements is water made of?)"

Journal Prompts

今日学んだ新しい元素について書いてください。 (Write about a new element you learned today.)

もし新しい元素を発見したら、どんな名前にしますか？ (If you discovered a new element, what would you name it?)

私たちの生活に欠かせない元素は何だと思いますか？ (What elements do you think are indispensable to our lives?)

科学の授業で一番印象に残っている実験は何ですか？ (What experiment from science class left the biggest impression on you?)

レアメタルの重要性についてどう思いますか？ (What do you think about the importance of rare metals?)

Frequently Asked Questions

10 questions

元素 (gensō) is used exclusively for chemical elements on the periodic table. 要素 (yōsō) is used for abstract elements, factors, or components of a whole, like 'elements of a story.' You cannot use them interchangeably in Japanese. If you are in a chemistry lab, use 元素. If you are in a business meeting, use 要素.

No, water is a 化合物 (kagōbutsu - compound). It is made of two 元素: 水素 (Hydrogen) and 酸素 (Oxygen). In casual English, people might say 'the elements,' but in Japanese science, you must be precise. Only pure substances like Gold, Iron, or Oxygen are called 元素.

Think of the kanji: 元 (origin) and 素 (plain/basic). It means the 'original basic' part of everything. Also, notice that many element names like 酸素 (Oxygen) and 炭素 (Carbon) end with the same '素' character. This creates a strong mental link between the category and the specific items.

元素記号 (gensō kigō) refers to the chemical symbols used worldwide, such as H, O, C, and Au. These symbols are the same in Japan as they are in the rest of the world. Even though the names of elements are in Japanese, the symbols remain the Latin-based abbreviations.

Nihonium (element 113) is the first chemical element discovered by a team of Japanese scientists at RIKEN. It is the first element discovered in Asia to be added to the periodic table. This discovery is a source of great national pride and is frequently mentioned in Japanese science textbooks.

No. In English, 'the elements' can mean wind, rain, and cold. In Japanese, this is called '自然の猛威' (shizen no mōi) or simply '雨風' (amekaze). Using 元素 would make it sound like you are being attacked by a periodic table.

希少元素 (kiyū gensō) are rare elements, often referred to as 'rare earth elements.' They are vital for modern technology, including magnets, batteries, and electronics. Because Japan is a major manufacturer, the supply and recycling of these 元素 are frequent topics in the news.

It is common in educational and technical contexts. Every Japanese person knows the word from school. However, you won't hear it in a typical conversation about daily life unless you are discussing science, health (like minerals), or technology.

The pitch accent is 'Heiban' (flat), meaning the pitch stays level throughout the word: [ge-n-so]. This is the most common accent pattern for two-kanji nouns in Japanese.

In a very broad sense, 'エレメント' (eremento) can be used, but it's much less common than 元素. For specific components, '成分' (seibun) is used. However, for the specific scientific meaning of 'chemical element,' 元素 is the only correct word.

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This Word in Other Languages

元素 Chinese

More Science words

吸収

A1

The act of taking in or soaking up something, such as liquid, light, heat, or knowledge. It describes both a physical process, like a sponge soaking up water, and a metaphorical process, like a student learning new information quickly.

分析

B1

Analysis refers to the process of breaking down a complex topic, substance, or situation into smaller parts to gain a better understanding of its structure or nature. In Japanese, it is frequently used as a suru-verb in scientific, business, and logical contexts to describe objective investigation.

原子

A1

An atom is the basic building block of all matter and the smallest unit of a chemical element. It consists of a dense central nucleus surrounded by a cloud of negatively charged electrons.

引力

A1

The physical force of attraction that pulls objects toward one another, most famously observed as Earth's gravity. It is also used metaphorically to describe a powerful charm or magnetic influence that draws people toward something.

細菌

A1

Microscopic single-celled organisms that can be found everywhere, including inside the human body. While some cause diseases, many are beneficial for health and the environment.

繁殖

A1

The biological process by which animals, plants, or microorganisms produce offspring or increase in number. It is often used to describe the spreading or multiplication of species in a specific environment.

炭素

A1

Carbon is a chemical element with the symbol C and atomic number 6. It is a fundamental building block of life and is found in substances ranging from charcoal and graphite to diamonds.

触媒

A1

A substance that increases the rate of a chemical reaction without undergoing any permanent chemical change itself. Metaphorically, it refers to a person or event that causes an important change or action to happen more quickly.

塩素

A1

A chemical element (symbol Cl) that is a yellow-green gas with a strong smell. It is widely used for disinfecting swimming pools and tap water, as well as in cleaning products like bleach.

解明

A1

The act of clarifying, solving, or unraveling a mystery, a complex problem, or a scientific phenomenon through investigation. It emphasizes the process of making something that was previously hidden or unknown clear and understandable.

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