No. 01 of 12 · Common Chemical Elements
Hydrogen
Chemical element with atomic number 1 (H)
- Type
- chemical element · atmophile element · Source · 2026-10-20
- Chemical formula
- Unknown
- Physical state
- gas (density measurement; temperature: 0 degree Celsius; under pressure: 101.325 kilopascal) · Source · 2026-10-20
- Density
- 0.089870 kilogram per cubic metre (temperature: 0 degree Celsius; state of matter: gas; under pressure: 101.325 kilopascal) · Source · 2026-10-20
- Source
- https://commons.wikimedia.org/wiki/File:Hydrogen_discharge_tube.jpg
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