Ionic and Covalent Bonds Concepts

The video explores whether sodium sulfate (Na2SO4) is ionic or covalent. Sodium, a metal, and sulfate, a polyatomic ion composed of non-metals sulfur and oxygen, form an ionic compound. Sodium ions have a +1 charge, while the sulfate ion has a -2 charge, resulting in a net charge of zero. The ionic bond forms between sodium ions and the sulfate ion. Within the sulfate ion, sulfur and oxygen are bonded covalently, forming molecular bonds.

What type of bond is formed when a metal and non-metals combine?

• Covalent bond

• Ionic bond

• Hydrogen bond

• Metallic bond

Which group does sodium belong to in the periodic table?

• Group 1

• Group 17

• Group 2

• Group 18

What is the charge of a sodium ion?

• 2-

• 1+

• 1-

• 2+

What is the charge of the sulfate ion (SO4)?

• 2+

• 2-

• 1+

• 1-

What is a polyatomic ion?

• An ion with a metallic bond

• An ion with multiple atoms bonded covalently

• An ion with a single atom

• An ion with a hydrogen bond

What type of bonds exist between sulfur and oxygen in the sulfate ion?

• Hydrogen bonds

• Covalent bonds

• Ionic bonds

• Metallic bonds

What is the nature of the bond between sodium ions and sulfate ions in sodium sulfate?

• Hydrogen bond

• Metallic bond

• Ionic bond

• Covalent bond

How many oxygen atoms are bonded to sulfur in the sulfate ion?

• Two

• Four

• Three

• Five

What is the net charge of sodium sulfate?

• 2-

• 1+

• 1-

• 0

What type of bond is sometimes referred to as a molecular bond?

• Metallic bond

• Hydrogen bond

• Ionic bond

• Covalent bond