Textbook Problem

When a neutron is captured by an atomic nucleus, energy is released as γ radiation. This energy can be calculated based on the change in mass in converting reactants to products.

For the nuclear reaction $\text{L}\text{i + }\text{n}\to \text{L}\text{i + }\gamma$:

(a) Calculate the energy evolved in this reaction (per atom). Masses needed (in g/mol) are $\text{L}\text{i}$ = 6.01512, $\text{n}$ = 1.00867, and $\text{L}\text{i}$ = 7.01600.n

(b) Use the answer in part (a) to calculate the wave-length of the γ rays emitted in the reaction.