Iodine

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Iodine
I
In situ availability:
Necessity:
Atomic number: 53
Atomic mass: 126.90447
group: 17
period: 5
normal phase: Solid
series: Halogens
density: 4.933 g/cm3
melting point: 386.85K,
113.7°C,
236.66°F
boiling point: 457.4K,
184.3°C,
363.7°F
Se ← Br → Kr
Te ← I → Xe
Po ← At → Rn
Atomic radius (pm): 140
Bohr radius (pm): 115
Covalent radius (pm): 133
Van der Waals radius (pm): 198
ionic radius (pm): (-1) 220
1st ion potential (eV): 10.45
Electron Configuration
1s2
2s2 2p6
3s2 3p6 3d10
4s2 4p6 4d10
5s2 5p5
Electrons Per Shell
2, 8, 18, 18, 7
Electronegativity: 2.66
Electron Affinity: 3.06
Oxidation states: +/-1, 5, 7
Magnetism: Nonmagnetic
Crystal structure: Orthorhombic

Iodine is a Halogen in group 17. It has a Orthorhombic crystalline structure. This element has a stable isotope of 127




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