Question

give the no of elements in 2 and 5 period in modern periodic table

Answer 1

2nd period is 8
5th period is 18
Please mark as brain list please

Answer 2

ANSWER.....

THE SECOND PERIOD HAVE 8 ELEMENTS
NAMINGLY.. LI, BE, B, C, N, O, F, NE.

THE FIFTH GROUP HAVE 18 ELEMENTS....



HOPE IT HELPS