^{4}\textrm{He}\) When a radioactive atom emits an alpha particle the mass number decreases by four and the atomic number drops by two. Here is the equation for the alpha decay of radon-219 into ...

In recent years, some large physics experiments worldwide have been trying to gather evidence of a nuclear process known as ...

half life and nuclear equations. If you struggled with the quiz, don't panic - we've got you! You can revise radioactive decay by clicking the links below. Click the links below to try our GCSE ...