Question

The atomic radius of lithium is larger than the atomic radius of nitrogen.

a. True
b. False

Answer 1

a. True

Step-by-step explanation:

In the periodic table , all the elements are placed in a certain fashion , i.e. , with increasing atomic number.

Since ,

The element lithium and nitrogen are placed , in group 1 and 15 respectively.

as we go from left to right , across the group , the atomic radius decreases ,

Because ,

As , we go left to right , the number of electrons increases in the same shell , and proton too increases , which in turn increases the nuclear attraction , and the nucleus holds on to the electrons more firmly , and hence , the size reduces , as the electrons increases , in the same shell.

Hence, the given statement is true.