Question

An element has atomic mass 10.8. If
the mass numbers of its two isotopes X and Y are 10 and 11 respectively, the isotopic abundance of X is
(A) 40%
(B) 20%
(C) 80%
(D) 60%​

Answer 1

Answer:

answer is D 60% this correct answer

Answer 2

Answer:

hope this will help you