Question

The atomic number of fluorine is 9. Explain the formation of the fluorine molecule $$\left(\mathrm{F}_{2}\right).$$

Answer 1

Fluorine has the electronic configuration 2,7. Each fluorine atom has seven valence electrons and needs one more to complete its octet. Both atoms contribute one electron to a shared pair, forming a single covalent bond and the molecule $$ (\mathrm{F}_{2})$$, represented as $$(\mathrm{F}-\mathrm{F})$$, with three lone pairs on each fluorine.