Question

compare the atomic size between B,C,P,CL​

Answer 1

Answer:

C<B<Cl<P

Explanation: atomic size depends upon atomic radius

The atomic radius becomes larger as we go down a column/group of the periodic table because the valence electrons are placed in larger orbitals.

The atomic radius becomes smaller as we go from left to right across a row/period of the periodic table because the number of protons in the nucleus also increases as we go across a row of the table. The nucleus tends to hold electrons in the same shell of orbitals more tightly and the atoms become smaller.