Question

arrange the
following element in decreasing
order of
aromic size
of at
Na Mg Al, si, P, S, Cl​

Answer 1

Answer:

Na > Mg > Al > Si > P > S > Cl

Explanation:

All given elements belong to 3rd period so moving from left to right across a period, Atomic Size decreases because of Increasing Effective nuclear Charge ( increases one proton by one to moving across a period ).