neutron
意味
- 中性子,ニュートロン(原子核の構成要素の一つ)
例文
Atoms are composed of protons, neutrons, and electrons.
原子は陽子・中性子・電子で構成されている。
語源
英語の原文（Wiktionary）
From neutral + -on; by surface analysis, neutr(o)- + -on. Coined by Scottish-Australian physicist William Sutherland in 1899 in a paper in the Philosophical Magazine. Subsequent usage was sporadic and theoretical, sometimes referring to neutrinos rather than neutrons, and the modern sense was reintroduced alongside proton by Ernest Rutherford in 1920.