Question

C. Atomic radius goes on increasing down a group
d. Elements belonging to the same group have the same valency.
e.The third period contains only eight elements even through the electron Write the names from the description . capacity of the third shell is 18. ​

Answer 1

Answer:

d. Elements belong to the same group have the same valency because the number of valence electrons in a group is same due to which the tendency of an atom to lose or gain electrons in order to attain nearest noble gas configuration is also same.

Explanation: