Which element is having lowest melting and boiling point.
A
Ti
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B
Cu
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C
Zn
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D
Mn
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Solution
The correct option is C Zn
Melting points of metals are attributed to the involvement of number of electrons from (n-1) d in addition to the ns electrons in the interatomic metallic bonding. Unpaired electron per d orbital is particularly favourable for strong interatomic interaction. Zn has no unpaired electron hence it has lowest melting and boiling point.