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 orbitals.
D) It has a completely filled d-orbital that causes d-d overlapping.
Correct Answer: C
Solution :
[c] Mercury is a liquid metal because it has completely filled d-orbitals which prevents d-d overlapping of orbitalsYou need to login to perform this action.
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