Question

write down the electronic arrangements in magnesium atom and chlorine atom

Answer 1

electronic config. of


magnesium
atomic no. 12
electronic conf. K, L, M
2,8, 2
chlorine
atomic no 17
electronic conf. K, L, M
2, 8, 7




hope it hlps u

Answer 2

Hi friend!!!
__________________________

We know that arrangement of electrons in shells is according to " 2n^2" where n is the ordinal number of shell.

Electronic configuration of Magnesium (Mg) atom whose atomic number =12:-

K shell: 2 electrons

L shell: 8 electrons

M shell:2 electrons


Electronic configuration of Chlorin (Cl) atom whose atomic number =17:-

K shell: 2 electrons

L shell: 8 electrons

M shell:7 electrons

HOPE IT HELPS...

___________________________