Atomic Structure

• Ionic bonding is an electrostatic force of attraction between oppositely charged ions through the transfer of valence electrons between atoms.
• An ion is an atom that has taken or gained valence electrons in order to achieve a full outer shell and become stable.
• Covalent bonding is the sharing of valence electrons of two or more non-metal atoms, to gain a full valence shell and become stable together.
• Explain why two different ions have the same electron configuration.

  • Number of electrons and protons
  • Charge
  • Electron arrangement of the two atoms and ions
• Explain the ratio of an ionic compound.

  • Charge
  • What reacts to what to take/lose electrons
  • Neutral compound: Combined charge to cancel out
  • state actual ratio
• Anion is a negatively charged ion
• Cations is postively charged ion