Question

The total number of atomic orbitals in fourth energy level of an atom is :
(a) 8
(b) 16
(c) 32
(d) 4

Answer 1

Dear Ravi,

◆ Answer -

(b) 16

● Explanation -

Total number of atomic orbitals in nth energy level of an atom is given by -

N = n²

N = 4²

N = 16 orbitals

Therefore, total number of atomic orbitals in 4th energy level of an atom is 16.

* [Don't confuse this with no of electrons in a shell which is 2n².]

Thanks dear. Hope this was helpful...

Answer 2

Answer:

The correct answer for the given question is (B) 16.

Explanation:

• The number of electrons in each orbital is the key process in chemical bonding.
• The formula to calculate the no. of orbitals at each ‘energy level’ is $n^{2}$ where n is the energy level.
• So in the fourth energy level, the total no. of atomic orbitals would be: $n^{2}=4^{2}=16.$
• An orbital is the region around the atomic nucleus where electrons can be found.
• There are four orbitals – s, p. d, and f and they are of different size and shape. Each the orbital can “hold up to two electrons”.