An alpha particle is also a helium-4 nucleus. It is written as \(_{2}^{4}\textrm{He}\) and is also sometimes written as \(_{2}^{4}\alpha\). 4. A new element is formed as the nucleus now has less ...

Researchers in Japan are developing world-leading expertise in making and using the alpha particle emitter ... 211 compounds to treat thyroid 4 and prostate 2 cancer. For thyroid cancer, the ...