The number of orbitals with n = 5, m _ 1 = + 2 is ________. (Round...

For, $n = 5$

$ℓ = \left(0, 1, 2, 3, 4\right)$

If $ℓ = 0, m = 0$

$ℓ = 1, m = \left\{- 1, 0, + 1\right\}$

$ℓ = 2, m = \left\{- 2, - 1, 0, + 1, + 2\right\}$

$ℓ = 3, m = \left\{- 3, - 2, - 1, 0, + 1, + 2, + 3\right\}$

$ℓ = 4, m = \left\{- 4, - 3, - 2, - 1, 0, + 1, + 2, + 3, + 4\right\}$

$5d, 5f$ and $5g$ subshell contain one-one orbital having ${m}_{ℓ} = + 2$