Name:  Chlorine

Atomic Symbol and Mass Number: Cl [17]

Electron Configuration: [Ne] 3s    3p

Atomic Radii: 175 pm

Electron Affinity: 349 kJ mol-1

Oxidation states:  -1, 0, +1, +3, +4, +5, +7

Electronegativity value: 3.16

Elemental Group: Halogens

Uses and properties:

• A greenish-yellow, diatomic, dense gas with bleach-like smell

• Not readily found free in nature

• Occurs in nature as common salt (NaCl) and sylvite (KCl)

• In its liquid and solid form, it is a powerful bleaching, oxidizing and disinfecting agent

• Production of safe potable water

• Chlorinated compounds are used mostly for sanitation, pulp bleaching, disinfectants, and textile processing

• Important in organic chemistry for the formation of compounds such as chloroform

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Lewis diagram: