What is the meaning of Hydrogen?
The lightest chemical element (symbol H), with an atomic number of 1 and atomic weight of 1.00794.
- An atom of the element.
An atom of the element.
Molecular hydrogen (H2), a colourless, odourless and flammable gas at room temperature.
- A molecule of this molecular species
A molecule of this molecular species
The isotope hydrogen-1 (also symbol H), contrasting with deuterium and tritium
A sample of the element/molecule.
hydrogen (chemical element, symbol H)
hydrogen (chemical element, symbol H)
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