Question

what is the outer most electronic configuration of zr and HF​

Answer 1

[Kr] 4d² 5s² in zr

and in hf

Hydrogen Fluoride:

There are eight valence electrons which occupy four molecular orbitals. The two highest energy MO's are degenerate, are p-type and have no electron density associated with the hydrogen atom, ie. they are Non-Bonding Orbitals (NBO) and in Lewis Theory are represented as two "Lone Pairs".