陽子
A proton is a subatomic particle found in the nucleus of an atom that carries a positive electric charge. The number of protons in an atom's nucleus determines the chemical identity of that element.
Exemples
3 sur 5原子の真ん中には陽子があります。
There are protons in the center of an atom.
陽子の数は原子番号を決定する重要な要素です。
The number of protons is a key factor that determines the atomic number.
ねえ、陽子ってプラスの電気を持ってるんだよね？
Hey, protons have a positive charge, right?
Famille de mots
Astuce mémo
The first kanji 陽 (yō) means 'positive/sun' and 子 (ko) means 'particle/child'. So, it is the 'Positive Particle'.
Quiz rapide
原子核の中には、中性子と（ ）が含まれています。
Correct !
La bonne réponse est : b
Exemples
原子の真ん中には陽子があります。
everydayThere are protons in the center of an atom.
陽子の数は原子番号を決定する重要な要素です。
formalThe number of protons is a key factor that determines the atomic number.
ねえ、陽子ってプラスの電気を持ってるんだよね？
informalHey, protons have a positive charge, right?
水素原子は、一個の陽子と一個の電子で構成されている。
academicA hydrogen atom is composed of one proton and one electron.
当社は次世代の陽子線治療システムを開発しています。
businessOur company is developing a next-generation proton beam therapy system.
Famille de mots
Collocations courantes
Phrases Courantes
陽子線
proton beam
陽子ポンプ
proton pump
陽子勾配
proton gradient
Souvent confondu avec
A neutron (中性子) has no electric charge, whereas a proton (陽子) has a positive charge.
While spelled and pronounced the same (Yōko), this is also a very common traditional female name.
Notes d'usage
This word is primarily used in scientific, medical, and academic contexts. In daily life, if you hear 'Yōko', it is much more likely to be a person's name unless the conversation is about science.
Erreurs courantes
Beginners might mistake this for the female name Yōko in reading, as the Kanji are identical. In a physics context, ensure you don't confuse it with 'denshi' (electron).
Astuce mémo
The first kanji 陽 (yō) means 'positive/sun' and 子 (ko) means 'particle/child'. So, it is the 'Positive Particle'.
Origine du mot
A Japanese translation of the scientific term 'proton', using the kanji for 'positive' to reflect its electric charge.
Modèles grammaticaux
Contexte culturel
The name 'Yōko' (using these same characters) was one of the most popular female names in Japan during the mid-20th century, symbolizing a 'child of sunlight'.
Quiz rapide
原子核の中には、中性子と（ ）が含まれています。
Correct !
La bonne réponse est : b
Vocabulaire associé
Mots lis
協力
A1Cooperation or collaboration where two or more people combine their efforts to achieve a common goal. It is used in both personal and professional settings to describe working together as a team or providing assistance.
提案
A1A suggestion or proposal of a plan or idea for others to consider. It is used in both casual conversations and professional meetings to introduce a potential course of action.
輸出
A1The act of sending goods or services produced in one country to another country for sale or trade. In Japanese, it functions as a noun and a suru-verb, representing the 'exit' of products from a domestic market.
輸入
A1The act of bringing goods, services, or materials into a country from abroad for sale or use. In Japanese, it functions as a noun or can be combined with 'suru' to become a verb meaning 'to import'.
資源
A1Shigen refers to valuable materials or assets, such as natural minerals, energy sources, or human talent, that can be used for production or survival. It is widely used in economics, environmental science, and daily life to describe both raw materials and abstract wealth.
保護
A1The act of keeping someone or something safe from harm, damage, or loss by providing care or creating boundaries. It is a versatile term in Japanese used for social welfare, environmental conservation, and digital security.
観察
A1Observation is the act of watching someone or something carefully in order to gain information or understand a process. It is frequently used in scientific studies, nature analysis, and describing the act of paying close attention to details.
競争
A1Kyousou refers to the act of competing or vying with others to achieve a goal, win a prize, or establish superiority. It is a versatile term used in sports, business, and academics to describe both structured contests and general rivalry.
拡大
A1The act of making something larger in size, scale, or scope. It is frequently used for physical enlargement (like a photo) or abstract growth (like a business or a problem).
製造
A1The process of making or producing goods, typically on a large scale using machinery. It refers specifically to industrial manufacturing rather than making things by hand on a small scale.
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