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imgloka — hydrogen
Published: 2021-09-10 01:06:22 +0000 UTC; Views: 458; Favourites: 2; Downloads: 0
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Description
Hydrogen is the most common element in the universe, making up about 75% of its mass.Symbol: H
Atomic mass:1.00784 u
Density (when liquid at melting point):0.07099 g/cm3
Melting:-259.16 °C
Boiling:-252.87 °C
Discovered by:Henry Cavendish
Year of discovery:1766
