Question

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

Answer 1

$\huge\mathfrak{\underline{\underline{\red{Answer:-}}}}$

Average atomic mass of bromine

= (79×49.7%) +(81×50.3%)

=79×49.7/100 + 81×50.3/100

=79×0.497+81×0.503

=39.263+40.743

=80.006u

$\huge{Thank\:You!!!}$