Question

The maximum number of electrons in M - shell of an element X whose number of protons are 19 is​

Answer 1

Answer:

Number of electrons in each shell

Shell name Subshell name Shell max electrons

K 1s 2

L 2s 2 + 6 = 8

2p

M 3s 2 + 6 + 10 = 18

Answer 2

Answer:

The answer is 18

Explanation:

It can be find by drawing m shell chart that is n=3

K1s 2

KE 2s +6 = 8

2p

M 3s 2 +6+10= 18

Hope you got your answer