Question

Calculate the average atomic mass for the element beryllium, given this information about the

relative abundance of its 3 isotopes.
Be-8 = 0.2% Be-9 = 98.9% Be-10 = 0.9%. Please show all your work.

Answer 1

Answer: 9.007

Step-by-step explanation:

Be-8 8 x 0.20% = 0.016

Be-9 9 x 98.90% = 8.901

Be-10 10 x 0.90% = 0.09

100.00% 9.007