Correct answer-brainliest compare the number of subatomic particles in Br79 and Br81 isotopes atomic number 35
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no of electrons in both isotopes will be 35 ( given )
no of protons is M-Z
Br 79 protons = 79-35 = 44 neutrons ,protons= 35
for Br 81 , no of protons = 35
no of neutrons = 81-35 = 46
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