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 :
The electronic configuration of mercury (80) is, \[[Xe]\,\,4{{f}^{10}},\,5{{d}^{10}},6{{s}^{2}}\]. Its d-subshell is completely filled, thus it prevents the overlapping of d orbitals (d-d overlapping). Hence, it is liquid metal at room temperature.
You need to login to perform this action.
You will be redirected in
3 sec
