properties of ionic compounds

• What is an ion?

  A charged atom (+ or -)
• How does an ion form?

  By adding or removing electrons
• How many protons does sodium (Na) have?

  11 protons
• How many neutrons does sodium (Na) have?

  12 neutrons
• How many protons does chlorine (Cl) have?

  17 protons
• How many neutrons does chlorine (Cl) have?

  18 neutrons
• What is oxidation?

  Loss of electrons
• What is reduction?

  Gain of electrons
• What does the acronym OIL RIG stand for?

  Oxidation Is Loss, Reduction Is Gain
• What is electrostatic attraction?

  Attraction between oppositely charged ions
• What is ionic bonding?

  Forces acting in all directions between ions
• What type of elements participate in ionic bonding?

  A metal and a non-metal
• What do metals do in ionic bonding?

  Lose electrons to form positive ions
• What do nonmetals do in ionic bonding?

  Gain electrons to form negative ions
• What is the electron configuration of ions?

  They have a full outer shell
• What happens when magnesium reacts with chlorine?

  They form ionic bonds

  
• What happens when lithium reacts with sulfur?

  They form ionic bonds
• What are the ion diagrams for sodium, chlorine, magnesium, and oxygen?

  • Sodium: Na+
  • Chlorine: Cl-
  • Magnesium: Mg2+
  • Oxygen: O2-
• What are the formulae for the following compounds?

  • Potassium chloride: KCl
  • Sodium fluoride: NaF
  • Magnesium sulphide: MgS
  • Calcium oxide: CaO
  • Potassium oxide: K2O
  • Calcium chloride: CaCl2
  • Aluminium chloride: AlCl3
  • Aluminium oxide: Al2O3
• What is the charge of potassium ion (K)?

  K+ (positive ion)
• What is the charge of sodium ion (Na)?

  Na+ (positive ion)
• What is the charge of calcium ion (Ca)?

  Ca2+ (positive ion)
• What is the charge of magnesium ion (Mg)?

  Mg2+ (positive ion)
• What is the charge of aluminium ion (Al)?

  Al3+ (positive ion)
• What is the charge of fluoride ion (F)?

  1. (negative ion)
• What is the charge of chloride ion (Cl)?

  Cl- (negative ion)
• What is the charge of oxide ion (O)?

  O2- (negative ion)
• What is the charge of sulfide ion (S)?

  S2- (negative ion)