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Hafnium
(Hf)
1
1
1
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2
8
18
32
10
2
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Hf
Category
Transition metal
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Relative atomic mass
178.49
Density
13.3
Melting point (°C)
2233
Boiling point (°C)
4603
Electronegativity (Pauling)
1.3
Discovery year
1922
Discovered by
Dirk Coster
George de Hevesy
Electrons: 72
Protons: 72
Neutrons: 106
Wikipedia
created by @lukaswyss
Hafnium (Hf) – Element 72
