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Hydrogen

(H)

Category

Nonmetal

Relative atomic mass

1.0079

Density

0.0899

Melting point (°C)

-259.3

Boiling point (°C)

-252.9

Electronegativity (Pauling)

2.1

Discovery year

1766

Discovered by

Henry Cavendish

created by @lukaswyss

Hydrogen (H) – Element 1