How many protons, electrons, and neutrons does the 79Br + isotope contain?

Bromine is element no 35.

Your isotope is Br-79 +

Since it's a positive atom, it will have one electron less than normal

No of electrons = atomic number - 1 = 34

No of protons = atomic number = 35

No of neutrons = atomic mass - atomic number = 79 - 35 = 44