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79? I'm pretty sure the Atomic Mass of Bromine is 80.

Incase you were wrong, the Atomic mass = Number of protons + Neutrons, which is 80.

The atomic number is 35, which is the number of protons. Protons = 35.

So the No. of Neutrons = 80 ( protons & neutrons) - 35 (protons) = 45 ( No. of neutrons)

and Finally for electrons = the number of protons which is 35.

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13y ago

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