Question

In an atom,2 electrons are in K orbit, 8 electrons are in L orbit and 2 electrons are in M orbit, find atomic number of atom. If 2 electrons are replaced from M orbit then what will be ionic formula of the atom?​

Answer 1

${\large{\underline{\mathcal{\red{Answer}}}}}$

K,L,M

2,8,2

So, atomic number of the element is 12.

After, removing 2 electron from M orbit , the ionic formula of the element is Ne.