Question

which has smaller size Cl or f. Justify ​

Answer 1

Answer:

F is smaller than Cl because

1) It is smallest element in periodic table

2) It is placed above Cl in the group and hence has smaller size.

Explanation:

Answer 2

Answer:

Fluorine, though higher than chlorine in the periodic table, has a very small atomic size. This makes the fluoride anion so formed unstable (highly reactive) due to a very high charge/mass ratio. ... As a result, fluorine has an electron affinity less than that of chlorine.