Chemistry

Problem

The reaction of an alpha particle with beryllium is given below.

^{9}_{4}\mathrm{Be} + ^{4}_{2}\mathrm{He} \;\rightarrow\; ? \; + ^{1}_{0}\mathrm{n}

a. (i) Write the symbol of the product nucleus. b. (ii) Using the following atomic masses, calculate the

Q

-value of the reaction.

^{9}_{4}\mathrm{Be}:\;9.012182\,\text{u}

^{4}_{2}\mathrm{He}:\;4.002603\,\text{u}

^{12}_{6}\mathrm{C}:\;12.000000\,\text{u}

^{1}_{0}\mathrm{n}:\;1.008665\,\text{u}

(Take

1\,\text{u}=931.5\,\text{MeV}