Question

Explain the variation of atomic size along the 3rd row. Why does it happen so?​

Answer 1

Explanation:

of electrons entering the outermost orbit, increases by 1 each time, but, the increased charge on the nucleus does not allow the electrons to shield themselves from the attractive force. ... Thus, the force of attraction increases as we progress through the 3rd period and the atomic radius decreases

Answer 2

Explanation:

of electrons entering the outermost orbit, increases by 1 each time, but, the increased charge on the nucleus does not allow the electrons to shield themselves from the attractive force. ... Thus, the force of attraction increases as we progress through the 3rd period and the atomic radius decreases