90. Covalent Bonding(36) – MOT(11) – Fluorine.

Fluorine molecule (F₂) – 

F (9) 1s² 2s² 2p⁵

Two fluorine atoms bring 7 electrons each to the table and thus the 10 electrons get arranged in the MOs formed as follows –

Electronic configuration –(σ_1s)² (σ_2s)² (σ_2s)² (σ_2p)² (π_2p)⁴ (π_2p)⁴

There are no unpaired electrons in the molecular orbitals of fluorine and so it’s diamagnetic i.e it has no permanent magnetic dipole moment.

∴Bond order for F₂ molecule = 1/2 ( 8-6)= 1
Thus, there is a single bond between two F atoms.

From the next post, we shall start studying heteronuclear molecules. Till then,

Be a perpetual student of life and keep learning…

Good Day!