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Astatine Element

Astatine
Atomic Number : 85
Atomic Weight : 210
Boiling Point : -340oC
Melting Point : 302oC
Phase at Room Temperature: : Solid
Element Classification: : Semi-Metal
Period Number: : 6
Discovered Year: : 1940
Discovered by: : Dale Corson, K. Mackenzie and E. Segre

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