properties of ionic bonding

• What is ionic bonding?


  Ionic bonding is a type of chemical bonding that occurs between a metal and a nonmetal.
• What types of elements are involved in ionic bonding?

  Metals and non-metals
• What happens to the electrons in ionic bonding?

  Electrons are transferred between atoms
• What holds an ionic compound together?

  Electrostatic forces between oppositely charged ions
• What charge does an electron have?

  Negative charge
• What charge does a neutron have?

  No charge
• What properties does NaCl (salt) have?

  High melting point and conducts electricity when molten
• How many electrons does magnesium have?

  12 electrons
• How many electrons does oxygen have?

  8 electrons
• How are the electrons arranged in an atom?

  In shells around the nucleus
• What happens when magnesium reacts with chlorine?

  • Magnesium loses electrons to form Mg2+
  • Chlorine gains electrons to form Cl-
  • They form MgCl2 through ionic bonding

  
• What happens when lithium reacts with sulfur?

  • Lithium loses electrons to form Li+
  • Sulfur gains electrons to form S2-
  • They form Li2S through ionic bonding
• What is the process of ionic bonding?

  1. Metal loses electrons to form positive ions
  2. Non-metal gains electrons to form negative ions
  3. Oppositely charged ions attract each other
  4. Forms a giant ionic lattice structure
• What is the empirical formula of sodium oxide?

  Na2O
• What is the empirical formula of sodium iodide?


  NaI
• What is the empirical formula of magnesium oxide?

  MgO
• What is the empirical formula of magnesium chloride?

  MgCl2
• What are the properties of giant ionic structures?

  • High melting points
  • High boiling points
  • Strong electrostatic forces between ions
• What happens to the structure and bonds when an ionic compound melts?

  The structure breaks down, and ions move freely
• Why do ionic compounds have high melting and boiling points?

  • Strong electrostatic forces between ions
  • Many ions in the structure
  • Requires high energy to break bonds
• What are the models used for giant ionic structures?

  Dot and cross, ball and stick, space filling
• Why do solid ionic compounds not conduct electricity?

  Because the ions are held in place
• Why do molten ionic compounds conduct electricity?

  Because the ions are free to move