If a bromine atom is available in the form of, say, two isotopes 35Br79 (49.7%) and 35Br81 (50.3%), calculate the average atomic mass of the bromine atom.

The average atomic mass of Br = [(Atomic mass of 35Br79 × percentage) + (Atomic mass of 35Br81 × percentage)]/100=[79×49.7 + 81×50.3]/100=80.006 u

Book Online Demo

Check Your IQ

Try Test

Courses

Offline Centres

If a bromine atom is available in the form of, say, two isotopes ₃₅Br⁷⁹ (49.7%) and ₃₅Br⁸¹ (50.3%), calculate the average atomic mass of the bromine atom.

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away

An Intiative by Sri Chaitanya

answer is 80.006.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

The average atomic mass of Br = [(Atomic mass of ₃₅Br⁷⁹× percentage) + (Atomic mass of ₃₅Br⁸¹ × percentage)]/100

=[79×49.7 + 81×50.3]/100

=80.006 u

Watch 3-min video & get full concept clarity

JEE

NEET

Foundation JEE

Foundation NEET

CBSE