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Hafnium Element

Hafnium
Atomic Number : 72
Atomic Weight : 178.49
Boiling Point : 4603oC
Melting Point : 2233oC
Phase at Room Temperature: : Solid
Element Classification: : Metal
Period Number: : 6
Discovered Year: : 1923
Discovered by: : Dirk Coster and George von Hevesey

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