Question

A. what is the name of element in the figure and what is the number of electrons in this element​

Answer 1

The name of element is Magnesium

Calculating No of electrons

• K=2
• L=8
• M=2

$\boxed{\sf No\:of\:Electrons=K+L+M}$

$\\ \sf\longmapsto No\:of\:electrons=2+8+2$

$\\ \sf\longmapsto No\:of\:electrons=10+2$

$\\ \sf\longmapsto No\:of\:electrons=12$