A radioactive material contains many nuclei of the same kind that emit $\beta$-particles. After this emission, which property of the nuclei stays unchanged?
- Acharge
- Bneutron number
- Cnucleon number
- Dproton number
Physics 9702 · AS & A Level · Atoms, nuclei and radiation
A radioactive material contains many nuclei of the same kind that emit $\beta$-particles. After this emission, which property of the nuclei stays unchanged?