If the atomic number of an element is 33, it will be placed in the periodic table in the
A.
first group
B.
third group
C.
fifth group
D.
seventh group
Answer :
fifth group
Solution :
The electronic configuration of element with atomic number 33 is $$1{s^2},2{s^2}2{p^6},3{s^2}3{p^6},4{s^2},3{d^{10}},4{p^3}.$$
As, its last shell have five electrons and hence, its group is 10 + 5 = 15th or $$V A.$$
Releted MCQ Question on Inorganic Chemistry >> Classification of Elements and Periodicity in Properties
Releted Question 1
The correct order of second ionisation potential of carbon, nitrogen, oxygen and fluorine is