Question

Describe anomalous behaviour of fluorine with the other elements of group $17$ with reference to:
Oxidation state.

Answer 1

Anomalous behaviour of fluorine with the other elements of group $17$: Fluorine shows anomalous behaviour with the other elements of group $17$ due to : $\left(1\right)$ small size, $\left(2\right)$ high electronegativity and $\left(3\right)$ non-availability of d-orbitals in its valence shell.
Oxidation state: Due to maximum electronegativity of fluorine, it show only a negative oxidation state of $-1$. It does not show any positive oxidation state. The other members of group $17$ show negative as well as positive oxidation states of $+1,+3,+5$ and $+7$.