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Hydrogen
/ˈhaɪdɹədʒ(ə)n/
The lightest chemical element (symbol H), with an atomic number of 1 and atomic weight of 1.00794.
📖 Definitions of "Hydrogen"
noun
- 1
The lightest chemical element (symbol H), with an atomic number of 1 and atomic weight of 1.00794.
- 2
Molecular hydrogen (H2), a colourless, odourless and flammable gas at room temperature.
- 3
An atom of the element.
- 4
A sample of the element.
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