Any two identical atoms must necessarily have non-polar bonds. Polarity is caused by differences in electronegativity between the atoms (in other words, one atom attracts electrons more than the...
Bromine, Br2 is not polar. if you look at the bonds it creates, it only bonds with itself, so it would have to be non polar .. .. :Br - Br: .. ..
Covalent bonding
covalent covalent
It would create calcium bromide which is written as CaBr2.