Lunarpedia:Autostub2 test 7b

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Hafnium
Hf
In situ availability:
Necessity:
Atomic number: 72
Atomic mass: 178.49
group: 4
period: 6
normal phase: Solid
series: Transition Metals
density: 13.31 g/cm3
melting point: 2506K,
2233°C,
4051°F
boiling point: 4876K,
4603°C,
8317°F
useful isotopes: {{{isotopes}}}
YZrNb
Lu ← Hf → Ta
LrRfDb
Atomic radius (pm): 155
Bohr radius (pm): 208
Covalent radius (pm): 150
Van der Waals radius (pm):
ionic radius (pm): (+4) 83
1st ion potential (eV): 6.83
Electron Configuration
1s2
2s2 2p6
3s2 3p6 3d10
4s2 4p6 4d10 4f14
5s2 5p6 5d2
6s2
Electrons Per Shell
2, 8, 18, 32, 10, 2
Electronegativity: 1.3
Electron Affinity: ~0
Oxidation states: 4
Magnetism: ?
Crystal structure: Hexagonal
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Hafnium is a Transition Metal in group 4. It has a Hexagonal crystalline structure.



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