Sodium Phosphate Bonding and Properties

The video explores whether sodium phosphate (Na3PO4) is ionic or covalent. Sodium, a metal, bonds with non-metals phosphorus and oxygen, forming an ionic compound. Sodium ions have a +1 charge, while the phosphate ion (PO4) has a -3 charge, resulting in ionic bonds. Within the phosphate ion, phosphorus and oxygen form covalent bonds. Thus, sodium phosphate exhibits both ionic and covalent characteristics.

What type of elements are sodium and phosphorus in sodium phosphate?

• Sodium is a metal, phosphorus is a non-metal

• Both are non-metals

• Sodium is a non-metal, phosphorus is a metal

• Both are metals

Why is sodium phosphate considered an ionic compound?

• It contains only metals

• It contains only non-metals

• It has a metal bonded to non-metals

• It has no charged particles

What charge does a sodium ion carry?

• 2+

• 0

• 3-

• 1+

What is the charge of the phosphate ion in sodium phosphate?

• 4+

• 3-

• 2-

• 1+

How many sodium ions are needed to balance the charge of one phosphate ion?

• One

• Two

• Three

• Four

What type of bond exists between phosphorus and oxygen in the phosphate ion?

• Ionic bond

• Covalent bond

• Metallic bond

• Hydrogen bond

What type of bond is formed between sodium ions and the phosphate ion?

• Metallic bond

• Hydrogen bond

• Ionic bond

• Covalent bond

Which of the following best describes the bonding in sodium phosphate?

• No bonds

• Both ionic and covalent bonds

• Only covalent bonds

• Only ionic bonds

What is the overall nature of sodium phosphate?

• Purely ionic

• Purely covalent

• Both ionic and covalent

• Neither ionic nor covalent

What is the significance of the charges in forming sodium phosphate?

• They cause the compound to dissolve

• They have no effect

• They attract each other to form bonds

• They repel each other