Ionic Compounds and Polyatomic Ions

The video explores whether NH4(3)PO4, ammonium phosphate, is ionic or covalent. Initially, it seems covalent due to its non-metal components. However, it contains polyatomic ions: NH4+ and PO4^3-. These ions form ionic bonds, making NH4(3)PO4 an ionic compound. The video clarifies that while the compound is ionic, the polyatomic ions themselves have covalent bonds.

What elements are present in NH4₃PO₄?

• Nitrogen, Hydrogen, Potassium, Oxygen

• Neon, Hydrogen, Phosphorus, Oxygen

• Nitrogen, Helium, Phosphorus, Oxygen

• Nitrogen, Hydrogen, Phosphorus, Oxygen

What type of ions are ammonium and phosphate?

• Metallic ions

• Anions only

• Polyatomic ions

• Monatomic ions

What is the charge on the ammonium ion (NH4)?

• 2+

• 1+

• 3-

• 0

What is the charge on the phosphate ion (PO4)?

• 1+

• 2-

• 3-

• 4+

How do positive and negative ions interact in NH4₃PO₄?

• They attract each other to form ionic bonds

• They form covalent bonds

• They do not interact

• They repel each other

What type of bond is formed between the ions in NH4₃PO₄?

• Hydrogen bond

• Metallic bond

• Ionic bond

• Covalent bond

Despite being an ionic compound, what type of bonds exist within the polyatomic ions in NH4₃PO₄?

• Metallic bonds

• Covalent bonds

• Hydrogen bonds

• Ionic bonds

What is the overall classification of NH4₃PO₄?

• Metallic compound

• Covalent compound

• Non-metallic compound

• Ionic compound