How many lone pairs are on the central atom of bromine trifluoride?

Answer 1

there is only 1 lone pair present in BrF5

there are 7 electrons in Br valence shell from which 5 electrons went to make bond with F, while the remaining two makes a lone pair.

and thus anly 1 lone pair exist in BrF5

Answer 2

There will be two lone (unbonded) pairs of electrons. This will result in a "t-shaped," weakly polar molecule. The central bromine atom will experience an expanded valence level of electrons, due to its ability to access the 4d energy sublevel. This particle-level property is called hypervalency.

Answer 3

There are 2 lone pairs

Answer 4

2 :)

Answer 5

2