Artificial radioactivity was first discovered by

$_6C^{12}$ and $_1T^3$ are formed in nature due to the nuclear reaction of a neutron with:

The $_6C^{14}$ in the upper atmosphere is generated by which of the following nuclear reactions?

When $_3Li^7$ are bombarded with protons,$\gamma$-rays are produced. The nuclide formed is

The radioactive isotope $_{27}^{60}Co$,which is used in the treatment of cancer,can be produced by an $(n, p)$ reaction. For this reaction,the target nucleus is:

Which one of the following notations shows the product incorrectly?