Chemistry 4B

Chemistry 4B

1. Key Processes

   • Metal atoms lose the electron, or electrons, in their highest energy level and become positively charged ions
   • Metal atoms form positive ions, while non-metal atoms form negative ions. The strong electrostatic forces of attraction between oppositely charged ions are called ionic bonds
   • Non-metal atoms gain an electron, or electrons, from another atom to become negatively charged ions

2. Atoms with an outer shell of 8 electrons have a stable electronic structure

3. Metal atoms form positive ions

4. Non-metal atoms form negative ions

5. Ionic bonding, a metal and non-metal combine by transferring electrons to form positive ions and negative ions which then attract one another

6. The structure of sodium chloride and magnesium oxide is a giant ionic lattice in which positive ions are strongly attracted to negative ions

7. Sodium chloride has a high melting point and can conduct electricity when molten or in solution