Ch26 - Periodic Table + chemical formulas

    Cards (2)

    • Group 1 - Alkali metals
      Group 2 - Alkaline Earth metals
      Group 3 - referred to as the 'topmost element' group
      Group 7 - Halogens
      Group 8 - Noble gases (inert gases)
    • Atomic number - number of protons in the nucleus of an atom.
      Mass number - protons + neutrons
      Proton amount must be the same as electron amount.
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