When Atoms of Beryllium-9 Are Bombarded with Alpha Particles, Neutrons ${ }_{2}^{4} \mathrm{He}+{ }_{4}^{9} \mathrm{Be} \rightarrow{ }_{0}^{1} \mathrm{n}+\_\_\_\_\_\_$

Multiple Choice

When atoms of beryllium-9 are bombarded with alpha particles, neutrons are produced. What new isotope is also formed
${ }_{2}^{4} \mathrm{He}+{ }_{4}^{9} \mathrm{Be} \rightarrow{ }_{0}^{1} \mathrm{n}+\_\_\_\_\_\_$

A) ${ }_{6}^{12} \mathrm{C}$
B) ${ }_{3}^{5} \mathrm{Li}$
C) ${ }_{3}^{8} \mathrm{Li}$
D) ${ }_{5}^{10} \mathrm{~B}$
E) ${ }_{5}^{12} \mathrm{~B}$