A) s-block
B) p-block
C) d-block
D) f-block
Correct Answer: B
Solution :
The electronic configuration of the atom with atomic number 81 is \[=[Xe]\,4{{f}^{14}},5{{d}^{10}},6{{s}^{2}}{{p}^{1}}\] Electronic configuration shows that p orbitals of the element are incomplete, hence it belongs to p block (III A group element, ie, TI).You need to login to perform this action.
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