中性子
A neutron is a subatomic particle found in the nucleus of an atom that carries no electric charge. It has a mass slightly larger than that of a proton and is essential for the stability of atomic nuclei.
Exemples
3 sur 5理科の授業で中性子について習いました。
I learned about neutrons in my science class.
原子核は陽子と中性子から構成されています。
The atomic nucleus is composed of protons and neutrons.
中性子って、たしか重力に関係あるんだよね？
Neutrons are related to gravity, right?
Famille de mots
Astuce mémo
Think of 'Chū' (Middle/Neutral), 'Sei' (Nature), and 'Shi' (Child/Small thing). It is the 'Neutral-natured small particle'.
Quiz rapide
原子核は陽子と( )でできています。
Correct !
La bonne réponse est : 中性子
Exemples
理科の授業で中性子について習いました。
everydayI learned about neutrons in my science class.
原子核は陽子と中性子から構成されています。
formalThe atomic nucleus is composed of protons and neutrons.
中性子って、たしか重力に関係あるんだよね？
informalNeutrons are related to gravity, right?
中性子星の密度は極めて高く、スプーン一杯で数億トンに達する。
academicThe density of a neutron star is extremely high, reaching hundreds of millions of tons with just a single spoonful.
弊社は最新の中性子ビームを用いた非破壊検査技術を提供しています。
businessOur company provides non-destructive testing technology using the latest neutron beams.
Famille de mots
Collocations courantes
Phrases Courantes
中性子を放出する
to emit a neutron
高速中性子
fast neutron
熱中性子
thermal neutron
Souvent confondu avec
A neutrino is a nearly massless elementary particle, whereas a neutron is a much heavier nucleon found in atoms.
Chūsei refers to neutrality (like pH 7 or gender), while Chūseishi specifically refers to the physical particle.
Notes d'usage
This is a technical scientific term and is almost exclusively used in physics, chemistry, or astronomy contexts. In casual conversation, it only appears when discussing science topics.
Erreurs courantes
Learners might confuse it with 'neutrality' (中性) because they share the same root, but the suffix 'shi' (子) is required to refer to the particle itself.
Astuce mémo
Think of 'Chū' (Middle/Neutral), 'Sei' (Nature), and 'Shi' (Child/Small thing). It is the 'Neutral-natured small particle'.
Origine du mot
A Japanese loan-translation (calque) of the English word 'neutron', combining 'chūsei' (neutral) and 'shi' (particle/child).
Modèles grammaticaux
Contexte culturel
Given Japan's history with nuclear science (both energy and the atomic bomb), technical terms like these often appear in educational curricula and news media more frequently than in some other cultures.
Quiz rapide
原子核は陽子と( )でできています。
Correct !
La bonne réponse est : 中性子
Vocabulaire associé
Mots lis
集落
A1A cluster of houses forming a small community, typically in a rural or mountainous area. It refers to a human settlement smaller than a town, often used in geographical or sociological contexts to describe how people live together.
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.
西
A1Nishi refers to the cardinal direction 'west'. It is used to describe the location of places, directions on a map, or the path of celestial bodies like the sun setting.
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.
北
A1One of the four cardinal directions, pointing towards the North Pole. It is commonly used in Japanese to describe geographic locations, weather patterns, and specific parts of train stations or buildings.
表
A1This word has two primary meanings depending on the reading: 'omote' refers to the front, surface, or outside of an object, while 'hyō' refers to a table, chart, or list. It is a fundamental noun used to distinguish the visible side of things or to organize information visually.
左
A1Refers to the side or direction that is toward the west when one faces north. It is a fundamental spatial term used for navigation, positioning, and describing the physical orientation of objects.
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