List of top Chemistry Questions on Radioactivity

The half-life of radioactive isotope Zn$^{65}$ is 245 days. Find the time after which activity of Zn sample remains 75% of its initial value.
When a radioactive material emits an \(\alpha\)-particle, its position in the periodic table
The dimensional formula for the product of the decay constant \(\lambda\) and the mean life of a radioactive substance is
Cobalt (60) isotope is used in the treatment of
Cobalt (60) isotope is used in the treatment of: