About Isotopes
- Isotopes are atoms of the same element with different numbers of neutrons
- All isotopes of an element have the same number of protons
- Stable isotopes do not undergo radioactive decay
- Radioactive isotopes decay over time, measured by half-life
- Carbon-14 dating uses the decay of C-14 to determine age of organic materials
- Some elements have no stable isotopes (like technetium and promethium)