Ionic Compounds and Calcium Oxide

The video explores whether calcium oxide (CaO) is ionic or covalent. It begins by examining the periodic table, identifying calcium as a metal and oxygen as a non-metal, which typically form ionic compounds. The video explains that calcium, in group 2, has a 2+ charge, while oxygen, in group 16, has a 2- charge. These charges balance, resulting in an ionic bond in calcium oxide. The video concludes by affirming the ionic nature of CaO.

What is the main focus of the video regarding calcium oxide?

• The bond type in calcium oxide

• The uses of calcium oxide

• The color of calcium oxide

• The melting point of calcium oxide

Which elements form an ionic compound in calcium oxide?

• Two noble gases

• A metal and a non-metal

• Two non-metals

• Two metals

What type of element is calcium according to the periodic table?

• Non-metal

• Metal

• Noble gas

• Metalloid

What charge does calcium have in the periodic table?

• 1+

• 2-

• 2+

• 1-

In which group is oxygen found in the periodic table?

• Group 18

• Group 1

• Group 2

• Group 16

Why do calcium and oxygen form an ionic bond?

• They are both non-metals

• They are both metals

• They have opposite charges

• They have similar charges

What is the final conclusion about the nature of calcium oxide?

• It is covalent

• It is metallic

• It is ionic

• It is a mixture