Question

Give scientific reason the following questions:
Atomic radius goes on increasing down a group.​

Answer 1

$\huge{\underline{ \mathtt{\red{❥A} \green{n}\mathtt\blue{s} \purple{w} \mathtt \orange{e}\pink{r}}}}\:$

Atomic radius increases as we move from top to bottom in a group of the periodic table because a new shellof electrons are added to the atoms at every step. As the number of shells in the atoms increases gradually due to which thesize of atoms also increases.

Answer 2

$\large\mathtt\green{Answer}$

While going down a group a new shell is added.

$\purple\longrightarrow$the distance between the outermost electron and the nucleus goes on increasing. These electrons experience lesser pull from the nucleus.

Thus, atomic radius goes on increasing down a group