Question

If bromine atom is available in the form of two isotopes Br-79 (49.7%) and Br-81 (59.3%). calculate average atomic mass of bromine atom. ONE WORD​

Answer 1

Answer:

80.08

Explanation:

The formula for to calculate average atomic mass is

Avg. Wt = w1 X1 + w2 X2/ x1 +X2

(X= abundance of isotope)

(W= isotopic mass)

Here on applying it in the formula,

Avg. Wt = 79× 49.7 + 81× 59.3/ 49.7 + 59.3

:- Avg .wt = 80.08

Hope this helps you a little!!!