Question

Which of the following is true about the element of atomic no. 33?

• A. It is the $5^{th}$ period element
• B. It is p-block element
• C. It belongs to ${16}^{th}$ group
• D. It is the member of VI A group

Answer 1

The correct option is B It is p-block element

Electronic configuration of element with atomic no. 33 is
$33=\left[Ar\right]3d^{10}4s^{2}4p^3$
As electrons are being filled in p orbital, so it belongs to p block and group no. is ${15}^{th}$ i.e. 10 + no. of valence electrons.
It belongs to $4^{th}$ period as highest value of n is 4.