An element X has the following isotopic composition 200X = 90%, 199X = 8% and 202X = 2%. The weighted average atomic mass of the element X is closest to
A. 201 u
B. 202 u
C. 199 u
D. 200 u
Answer:D
An element X has the following isotopic composition 200X = 90%, 199X = 8% and 202X = 2%. The weighted average atomic mass of the element X is closest to
A. 201 u B. 202 u C. 199 u D. 200 u