Name: Iodine

Atomic Symbol and Mass Number: I [53]

Electron Configuration: 4d   5s   5p

Atomic Radii: 140 pm

Electron Affinity: 295.2 kJ mol‑1

Oxidation States:  −1, +1, +3, +5, +7

Electronegativity Value: 2.66

Elemental Group: Nonmetal

Uses and Properties:

• Iodine is a rhombic violet black gray solid that changes into purple vapors when heated

• It has a shine or glow and a strong harsh odor

• Iodine is important in medicine, in both radioactive and non-radioactive forms.

• Iodide and thyroxin, which contains iodine, are used inside the body.

• A solution containing potassium iodide (KI) and iodine in alcohol is used to disinfect external wounds.

• Elemental iodine is also used as a disinfectant.

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Lewis Diagram: