i. When a stable nucleus of \(^{10}_5B\) is bombarded with α-particle, it transforms into \(^{13}_7N\), which is radioactive and spontaneously emits positrons to produces \(^{13}_6C\).
This can be represented as,
\(^{10}_5B\) + \(^{4}_2He\) \(\longrightarrow\) \(^{13}_7N\) + \(^{1}_0n\),
\(^{13}_7N\) \(\longrightarrow\)\(^{13}_6C\) + \(^{0}_1e\)
(spontaneous emission of positron)
ii. The process involved is known as induced radioactivity or artificial radioactivity.
