A) \[_{3}L{{i}^{7}}\]
B) \[_{3}L{{i}^{6}}\]
C) \[_{5}B{{e}^{8}}\]
D) \[_{5}B{{e}^{12}}\]
Correct Answer: A
Solution :
\[_{5}{{B}^{10}}{{+}_{0{{n}^{1}}}}{{\xrightarrow{{}}}_{3}}L{{i}^{7}}{{+}_{2}}H{{e}^{4}}\] Total atomic number and mass number should be same on both sides of the equation.
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