Americium

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Americium
Am
In situ availability:
Necessity:
Atomic number: 95
Atomic mass: [243]
group: 19
period: N/A
normal phase: Solid
series: Actinide
density: 12 g/cm3
melting point: 1449K,
1176°C,
2149°F
boiling point: 2880K,
2607°C,
4725°F
SmEuGd
Pu ← Am → Cm
N/AN/AN/A
Atomic radius (pm): 175
Bohr radius (pm):
Covalent radius (pm):
Van der Waals radius (pm):
ionic radius (pm): (+3) 98
1st ion potential (eV): 5.99
Electron Configuration
1s2
2s2 2p6
3s2 3p6 3d10
4s2 4p6 4d10 4f14
5s2 5p6 5d10 5f7
6s2 6p6
7s2
Electrons Per Shell
2, 8, 18, 32, 25, 8, 2
Electronegativity:
Electron Affinity: -
Oxidation states: 6, 5, 4, 3
Magnetism: ?
Crystal structure: Hexagonal

Americium is a Actinide metal. It has a Hexagonal crystalline structure. It does not have any isotopes considered to be natural. Its longest-lived known isotope has an atomic number of 243. This element has no stable isotopes.




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