Fermium

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Fermium
Fm
In situ availability:
Necessity:
Atomic number: 100
Atomic mass: [257]
group: 19
period: N/A
normal phase: Solid
series: Actinide
density:
melting point: 1800K,
1527°C,
2781°F
boiling point:
HoErTm
Es ← Fm → Md
N/AN/AN/A
Atomic radius (pm):
Bohr radius (pm):
Covalent radius (pm):
Van der Waals radius (pm):
ionic radius (pm): -
1st ion potential (eV): 6.50
Electron Configuration
1s2
2s2 2p6
3s2 3p6 3d10
4s2 4p6 4d10 4f14
5s2 5p6 5d10 5f12
6s2 6p6
7s2
Electrons Per Shell
2, 8, 18, 32, 30, 8, 2
Electronegativity: 1.3
Electron Affinity: -
Oxidation states: 3
Magnetism:
Crystal structure:

Fermium is a Actinide metal. It does not have any isotopes considered to be natural. Its longest-lived known isotope has an atomic number of 257. This element has no stable isotopes.




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