P certainly obeys the octet rule in phosphides: PH3, Na3P etc.
Yes it is. It has 10 electrons (five valence electrons from phosphorus and five from five fluorine).
PF5
I know for sure BBr# & PF5 do not obey the octet rule, but i can't remember the rule of isotopes so I can't say for sure whether or not CO3 -2 obeys it or not.
yes
PF5 :SP3d
The electron geometry (and also, the molecular geometry) of PF5 is Trigonal Bipyramidal.
sp3
It is Phosphorous pentafluoride.
PF5
It is nothing. Love-Keyana Correia
The geometry is different and also reactivity. 2F more than on PF3 trigonal bipyramidal PF5 trigonal pyramidal PF3
trigonal planar
PF5