Question

. 1. State the number of elements in Period 1, Period 2 and Period 3 of the Periodic Table.
Q. 2. Name the elements in Period 1.

Answer 1

Ans : - There are 2 elements in Period 1 and 8 elements in each of Period 2 and Period 3.



Ans : - Hydrogen and Helium.

Answer 2

two elements in one period and 8 element in second period
element of first period is hydrogen and helium