Hydrogen Atomic Number 1 lightest Atom
Hydrogen Atomic Number 1 lightest Atom
英語 English:Hydrogen
日語 Japanese:水素 (すいそ)
定義 Definition:Hydrogen is an element with atomic number 1. At normal temperature and pressure, hydrogen appears as a hydrogen molecule ($H_2$) in our daily life.
類義 Synonym:Lightest atom Source of water
元素記号 Element symbol:H
語源 Origin:Greek Hydro(Of water) + Greek Gen(Put forth) ⇒ English Hydrogen
体系 System:化学 (Chemistry) > 物質 (Substance) > 分子 (Molecule) > 原子 (Atom) > 原子番号 (Atomic number) > 水素 (Hydrogen)
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