Question

The elements of the third period of the Periodic Table are given below:
Group 1 IT III IV V VI VII
Period 3 Na
Al
Mg
Si P S C
(a) Which atom is bigger, Na or Mg? Why?
(6) Identify the most (i) metallic and (ii) non-metallic element in Period 3.
CI​

Answer 1

Answer:

(a) Na is bigger than Mg

(b) Na, Mg and Al are metallic and Cl is non metallic.