One isotope of bromine has an atomic mass of 78.92 amu and a relative abundance of 50.69%. The other major isotope of has an atomic mass of 80.92 amu and a relative abundance of 49.31%? What is the average atomic mass of bromine?
1 Answer
Jan 1, 2016
The average atomic mass of Br is 79.92 u.
Explanation:
Multiply the atomic mass of each isotope times its percent abundance in decimal form. Add them together.
