Question

If M(A; Z), Mp and Mn denote the masses of the nucleus AZ X, proton and neutron respectively in units of u (l u = 931.5 MeV/c^2)

Answer 1

Boron has two stable isotopes, B510 and B511. Their respective masses are 10.01294 u and 11.00931 u, and the atomic mass of boron is 10.81u. Find the abundances of B510 and B511.