Chemistry - atoms

View mindmap
  • Atoms
    • Nuleus
      • Contains protons and neutrons
      • Has a positive charge
    • Electrons
      • Move around the nucleus in shells
      • Negatively charged and tiny
      • Have no mass
    • Atoms have no charge - same number of protons as electrons
    • Atomic number - how many protons there are
    • Mass number - total number of protons and neutrons
    • To get neutron number, subtract atomic number from mass number


No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Atoms resources »