Question

6. From the symbol Mg, state the mass number, the atomic
number and electronic configuration of magnesium​

Answer 1

Answer:

Mg

atomic no. - 12

Mass no. - 24

electronic configuration- 2,8,2

Answer 2

Answer:

Mass number: 24.305 u/24

Atomic number: 12

electronic configuration of magnesium​: Ne 3s2