Question

What do oxygen (O) and bromine (Br) have in common?

They both tend to gain electrons to gain stability.
They both have seven valence electrons.
They are both halogens.
They are both unreactive.

Answer 1

@Vocaloid @Michele_Laino

Answer 2

@Sachintha

Answer 3

@pooja195

Answer 4

@gabbyalicorn

Answer 5

Both of their valence shells lack electrons for stability. So both will tend to gain electrons by bonding.

Answer 6

so a

Answer 7

Oxygen has is short 2 electrons for a full shell and Bromine is short 1. From that information and our knowledge of the periodic table we can rule out all the options except for 1 so you are correct, they both want to gain electrons.