Question

The electronic configuration of Sodium (Atomic number = 11, mass number = 23) is 2,8,12,1  just mention the answer please don't have to explain ​

Answer 1

Explanation:

The atomic number and mass number of sodium are 11 and 23 respectively.

This suggests that number of proton in sodium =11 and number of nucleons i.e. proton and neutrons in sodium =23. Thus, number of neutrons =12 and also Since no. of protons = no. of electrons =11

So, they are similar