Phosphate Ion and Calcium Phosphate Concepts

The video explores whether calcium phosphate (Ca3(PO4)2) is ionic or covalent. It is primarily ionic, with covalent bonds within the phosphate ion. Calcium, a metal, bonds ionically with non-metals phosphorus and oxygen. The video explains the charges: calcium has a 2+ charge, and the phosphate ion has a 3- charge, balancing to a net zero charge. The phosphate ion is a polyatomic ion with covalent bonds between phosphorus and oxygen. The video concludes with a summary of these concepts.

What type of compound is calcium phosphate primarily considered?

• Hydrogen-bonded

• Covalent

• Metallic

• Ionic

Which elements in calcium phosphate are non-metals?

• Calcium and phosphorus

• Calcium and hydrogen

• Phosphorus and oxygen

• Calcium and oxygen

What is the ionic charge of calcium in calcium phosphate?

• 2+

• 3+

• 4+

• 1+

What is the charge on the phosphate ion in calcium phosphate?

• 2-

• 4-

• 1-

• 3-

How do the charges of calcium and phosphate ions balance in calcium phosphate?

• They do not balance

• Calcium's charge is greater

• Phosphate's charge is greater

• They balance to a net charge of zero

What type of ion is the phosphate ion considered?

• Triatomic ion

• Diatomic ion

• Monatomic ion

• Polyatomic ion

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

• Ionic bond

• Covalent bond

• Metallic bond

• Hydrogen bond

What is the nature of the bond between calcium ions and phosphate ions?

• Metallic

• Hydrogen

• Ionic

• Covalent

Which of the following best describes the bond within the phosphate ion?

• Van der Waals

• Metallic

• Ionic

• Covalent

What is the overall charge of calcium phosphate as a compound?

• Variable

• Negative

• Positive

• Zero