Types of Bonds
Objectives:
- Students will be able to explain ionic and covalent bonding.
- Students will be able to give examples of ionic and covalently bound atoms.
- Students will be able to determine whether a bond is ionic or covalent.
- Students will be able to explain differences in hydrogen bonds and Van der Waals interactions.
- Students will be able to describe the three basic types of chemical reactions.
- Students will be able to identify four forms of energy important in human functioning.
- Students will be able to distinguish between kinetic and potential energy, and between exergonic and endergonic chemical reactions.
- Students will be able to describe inorganic compounds necessary for survival.
- Students will be able to explain how unique properties of water result from hydrogen bonding and relate these properties to life.
- Students will be able to distinguish between acids and bases, and explain their role in pH.
- Students will be able to discuss the role of buffers in helping the body maintain pH homeostasis.
Ionic Bonds
An atom is considered an ion when it gains or loses one or more electrons, and therefore carries a charge. These oppositely charged atoms, or ions, are attracted to one another and form ionic bonds. An ionic bond can occur between any cation, (a positively charged ion), and anion, (a negatively charged ion).
The following video discusses the formation of ions and how ionic compounds are made.
Video 1. View The Formation of Ions video on YouTube (opens in a new window).
