Question

Write the correct symbol: > Igreater than or <[less than in the statements: il The ionization potential
of potassium is that of sodium. The electronegativity of iodine is that of chlorine. ​

Answer 1

Answer:

(1) As we move down the group new shells are added hence the atomic radius increases. The ionization potential decreases down the group as the atomic radii increases. Hence, potassium has less ionization potential than sodium.

(2) As we move down the group new shells are added hence the atomic radius increases. Electronegativity decreases down the group as the atomic radii increases. Hence, iodine is less electronegative than chlorine and fluorine is the most electronegative.