On bombarding $_8^{16}O$ with deuterons,the nuclei of the product formed will be

Artificial elements have been prepared by bombardment reactions in high energy accelerators. What is the mass number of the element $X$ produced in the following nuclear reaction: $_{95}^{249}Cf + _{7}^{15}N \rightarrow _{105}X + 4_{0}^{1}n$?

Which of the following can be used to convert $_7^{14}N$ into $_8^{17}O$?

In the nuclear reaction $_7N^{14} + _2He^4 \to _ZX^A + _1H^1$,the product nucleus $_ZX^A$ formed is:

$_6C^{14}$ is formed from $_7N^{14}$ in the upper atmosphere by the action of the fundamental particle:

Which one of the following nuclear reactions is correct?