Polonium

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Polonium
Po
In situ availability:
Necessity:
Atomic number: 84
Atomic mass: [210]
group: 16
period: 6
normal phase: Solid
series: Metalloids
density: (alpha) 9.196 g/cm3
(beta) 9.398 g/cm3
melting point: 527K,
254°C,
489°F
boiling point: 1235K,
962°C,
1764°F
SbTeI
Bi ← Po → At
UupUuhUus
Atomic radius (pm): 190
Bohr radius (pm): 135
Covalent radius (pm):
Van der Waals radius (pm):
ionic radius (pm): (+4) -
1st ion potential (eV): 8.42
Electron Configuration
1s2
2s2 2p6
3s2 3p6 3d10
4s2 4p6 4d10 4f14
5s2 5p6 5d10
6s2 6p4
Electrons Per Shell
2, 8, 18, 32, 18, 6
Electronegativity: 2
Electron Affinity: 1.9
Oxidation states: 4, 2
Magnetism: Nonmagnetic
Crystal structure: Cubic

Polonium is a Metalloid in group 16. It has a Cubic crystalline structure. It does not have any isotopes considered to be natural. Its longest-lived known isotope has an atomic number of 210. This element has no stable isotopes.




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