Question

If bromine atom is available in the form of two isotopes 79br35(49.7%) and 81 Br 35 (50.3%) calculate the average atomic mass of bromine atom

Answer 1

average atomic mass = =79×497/1000+81×503/1000 =39.263+40.743 =80.006 u
=80

Answer 2

_/\_Hello mate__here is your answer--

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The average atomic mass of bromine

={ (79 x 49.7)+ (81 x 50.3) }/100

= (3926.3 + 4074.3)/100

= 8000.6/100

= 80 u

I hope, this will help you.☺

Thank you______❤

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