Atomic & mass numbers

    Cards (13)

    • What do atomic and mass numbers help determine in atoms?
      Number of protons, neutrons, and electrons
    • What is an ion?
      An atom that has lost or gained electrons
    • What do protons and neutrons make up in an atom?
      The central nucleus
    • What charge do protons have?
      Positive charge
    • What charge do neutrons have?
      No charge
    • What charge do electrons have?
      Negative charge
    • Why do atoms have no overall charge?
      Electrons equal the number of protons
    • What does the atomic number represent?
      Number of protons in an atom
    • How do you calculate the number of neutrons?
      Mass number minus atomic number
    • What are isotopes?
      Atoms with the same protons but different neutrons
    • What happens when a sodium atom loses one electron?
      It becomes a sodium ion with +1 charge
    • What is the charge of a sodium ion after losing one electron?
      +1 charge
    • What happens if an atom loses two electrons?
      It has a +2 charge
    See similar decks