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Selenium

(Se)

Category

Nonmetal

Relative atomic mass

78.96

Density

4.809

Melting point (°C)

494

Boiling point (°C)

958

Electronegativity (Pauling)

2.55

Discovery year

1817

Discovered by

Berzelius

created by @lukaswyss

Selenium (Se) – Element 34