Question

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. fifteen group
• D. seventh group

Answer 1

Answer: (C)

fifteen group

Answer 2

The electronic configuration of element with
atomic number 33 is $1s^2, 2s^2 2p^6, 3s^2 3p^6$,
$4s^2, 3d^{10}, 4p^3$. As, its last shell have five electrons
and hence, its group is 10 + 5 = 15th or V A.