Question

if the atomic number of an element is 36 . the number of electrons present in m shell is​

Answer 1

The number of electrons present in m shell is​ 18, if the atomic number of an element is 36.

• Name of element with 36 atomic number is Krypton.
• An atom consists of K shell, L shell, M shell, and so on, which is known as the electronic configuration of an atom.
• M shell is the third shell.
• K shell has 1 subshell of 2 electrons written as 1s².
• L shell has 2 subshells of 8 electrons written as 2s², 2p⁶.
• M shell has 3 subshells of 18 electrons written as 3s², 3p⁶, 3d¹⁰.
• Next shells will hold the same formula of 2n², where n is the number of shell.

The electronic configuration of Krypton is

1s², 2s², 2p⁶, 3s², 3p⁶, 3d¹⁰

2+6+10 = 18

Therefore,

The number of electrons present in M shell is​ 18.