A

$(n-1) s^{2}(n-1) p^{3}$

B

$n s^{2} n p^{3}$

C

$n d^{6}(n+1) s^{2}$

এখানে n= 3

এখানে
$\text{n} = 2$

A

$\text{ns}^2\text{np}^3$

B

$(\text{n}+1)\text{s}^2(\text{n}+1)\text{p}^3$

C

$(\text{n}+1)\text{s}^2(\text{n}+1)\text{p}^5$

X

$ns^1$

Y

$\left(n+1\right)s^2\ \left(n+1\right)p^4$

M

$\left(n+2\right)s^2$

Z

$\left(n+2\right)s^2\ \left(n+2\right)p^4$

N

$\left(n+3\right)s^2$

শ্রেণি →

পর্যায়↓

1

15

17

1

X

2

Y

K

3

Z

L