Question

State the reason behind the observed trend in the above elements.​

Answer 1

Explanation:

Answer:

As u go down in a group, the atomic radii increase

Explanation:

As u movedown a group, the size of atom increases bcoz one shell is added to each element as u move down...so distance btw nucleus and outermost shell increases, and hence atomic radius also increases

Answer 2

please refer to the above answer