MHT CET Chemistry question

Mercury is a liquid metal because

(A)it has a completely filled s-orbital
(B)it has a small atomic size
(C)it has a completely filled d-orbital that prevents d - d overlapping of orbitalsCorrect
(D)it has a completely filled d-orbital that causes d - d overlapping

Answer: (C)

Solution

Hg has the completely filled subshell, which prevents d-d overlap and so the metallic bonding is very weak, giving a

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Question ID VK-074804