Isotopes: Atoms with a Twist

  1. Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons.
  2. This neutron difference gives isotopes slightly different masses.
  3. Carbon-12 and Carbon-14 are famous isotopes—one stable, one radioactive.
  4. Stable isotopes don’t change, while unstable ones decay over time, releasing energy.
  5. Radioactive isotopes act like clocks, helping scientists date ancient fossils and rocks.
  6. Medical imaging uses isotopes to trace processes inside the human body.
  7. Some isotopes power nuclear reactors, providing energy for millions of homes.
  8. Isotopes of the same element behave nearly the same in chemistry but differ in weight and stability.
  9. Hydrogen has three isotopes: protium, deuterium, and tritium, each with unique roles in science.
  10. Isotopes show that even tiny changes in atoms can have huge effects in medicine, energy, and history.