The table below describes four nuclides:
| name of nuclide | bismuth-210 | bismuth-212 | polonium-212 | lead-208 |
|---|---|---|---|---|
| nuclide notation | 83210Bi^{210}_{\ 83}\text{Bi} 83210Bi | 83212Bi^{212}_{\ 83}\text{Bi} 83212Bi | 84212Po^{212}_{\ 84}\text{Po} 84212Po | 82208Pb^{208}_{\ 82}\text{Pb} 82208Pb |
State which two nuclides have the same number of protons.
State which two nuclides have the same number of nucleons.
State which one of the four nuclides has the most electrons orbiting when it is in a neutral atom.
Bismuth-210 has a half-life of 5.0 days. A sample of radioactive material contains 80 mg of bismuth-210.
Calculate the mass of bismuth-210 remaining after 20 days.
284 exam-style questions on CIE IGCSE Physics 5.1 The nuclear model of the atom, covering 5.1.1a Structure of the atom and ions, 5.1.1b Alpha-particle scattering, 5.1.2a Composition of the nucleus and isotopes, 5.1.2b Proton number, nucleon number and nuclide notation, and 5.1.2c Nuclear fission and nuclear fusion. Each one has a worked solution and a mark scheme showing where the marks go.