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Chlorine

is the 17th element of the periodic table, it is green, and it is in group 7 - the halogens. Chlorine is highly reactive.

is the 17th element of the periodic table, it is green, and it is in group 7 - the halogens. Chlorine is highly reactive.

Symbol: Cl

Atomic mass: 35.453

Atomic number: 17

 Electronegativity : 3.16

Electrons per shell: 2, 8, 7

Melting point: -100.98 degrees C

Discoverer: Carl Wilhelm Scheele

Macau

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