Question

Match the spheres A through D with atoms of LI, Na, K, and Rb. $\left(4.7\right)$

Short answer

The match of spheres with the atoms is $B$is $Rb$, $C$is $K$,$A$is$Na$and$D$is$Li$.

Step-by-step solution

Given Information

We need to find the match the spheres A through D with atoms of LI, Na, K, and Rb.

Explanation

Li, Na, K, and Rb all the elements are in a group $1A$and different periods. In the periodic table size of elements increases when we go down the group. So the order of size is - $\mathrm{Li}<\mathrm{Na}<\mathrm{K}<\mathrm{Rb}$. And we can see by observing the image, the sequence of spheres is $D<A<C<B$.

So, from the sequence the largest sphere is $B$, so this is of $Rb$. And following the sequence sphere $C$is of $K$, sphere $A$is of $Na$and sphere $D$is of $Li$.