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11

Atomic number

17

22.99 u

Atomic mass

35.45 u

190 pm

Atomic radius

79 pm

0.93

Electronegativity

3.16

495.8 kJ/mol

1st ionisation

1251.2 kJ/mol

97.79 °C

Melting point

-101.55 °C

882.94 °C

Boiling point

-34.04 °C

0.968

Density

3.2