Ionic Bonds and Compounds

The video explores whether calcium chloride (CaCl2) is ionic or covalent. It begins by examining the periodic table, identifying calcium as a metal and chlorine as a non-metal, indicating an ionic compound. The video explains the need for two chlorine atoms to balance the charge of one calcium atom, forming CaCl2. The positive and negative charges attract, forming ionic bonds. Dr. B concludes that CaCl2 is ionic.

What type of bond is formed between a metal and a non-metal?

• Covalent bond

• Hydrogen bond

• Ionic bond

• Metallic bond

Why is calcium chloride considered an ionic compound?

• Because it is composed of noble gases

• Because it is composed of two metals

• Because it is composed of a metal and a non-metal

• Because it is composed of two non-metals

What is the ionic charge of calcium in CaCl2?

• 2-

• 1-

• 2+

• 1+

How many chlorine ions are needed to balance the charge of one calcium ion in CaCl2?

• One

• Four

• Three

• Two

What is the net charge of the compound CaCl2?

• Variable

• Positive

• Negative

• Zero

What causes the formation of ionic bonds in CaCl2?

• The sharing of electrons

• The attraction between positive and negative charges

• The presence of hydrogen bonds

• The repulsion between like charges