Elements

• -ic - higher oxidation number
• -us - lower oxidation number
• diatomic elements - pure elements that form molecules consisting of two atoms bonded together
• 7 diatomic elements:

  H₂ (Hydrogen)

  O₂ (Oxygen)

  Cl₂ (Chlorine)

  Br₂ (Bromine)

  F₂ (Fluorine)

  N₂ (Nitrogen)

  I₂ (Iodine)