Let’s go step by step to complete the table using Model 1.
We are given five ions: Nitride, Nitrate, Sulfate, Sulfite, and Ammonium.
For each, we need to fill in:
- Charge on Ion
- Type and Number of Atoms
- Chemical Formula
We’ll use the diagrams in Model 1 to get this info.
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1. Nitride (Monatomic Ion)
From Model 1: It’s a single nitrogen atom with a 3– charge → N³⁻
→ Charge = –3
→ Atoms = 1 nitrogen
→ Formula = N³⁻
✔ (already filled)
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2. Nitrate (Polyatomic Ion)
Diagram shows: 1 nitrogen + 3 oxygen atoms, total charge = 1–
→ Charge = –1
→ Atoms = 1 nitrogen, 3 oxygen
→ Formula = NO₃¹⁻ or just NO₃⁻ (we write it as NO₃⁻ usually, but since the table uses superscript numbers, we’ll keep it as NO₃¹⁻)
✔ (already filled)
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3. Sulfate (Polyatomic Ion)
Diagram: 1 sulfur + 4 oxygen atoms, charge = 2–
→ Charge = –2
→ Atoms = 1 sulfur, 4 oxygen
→ Formula = SO₄²⁻ → written as SO₄²⁻
✔ (already filled)
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4. Sulfite (Polyatomic Ion)
Diagram: 1 sulfur + 3 oxygen atoms, charge = 2–
→ Charge = –2
→ Atoms = 1 sulfur, 3 oxygen
→ Formula = SO₃²⁻ → written as SO₃²⁻
✔ (already filled)
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5. Ammonium (Polyatomic Ion)
Diagram: 1 nitrogen + 4 hydrogen atoms, charge = 1+
→ Charge = +1
→ Atoms = 1 nitrogen, 4 hydrogen
→ Formula = NH₄¹⁺ or NH⁺ → written as NH¹⁺
✔ (already filled)
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Wait — looking at the table again, all the answers are already filled in correctly! Let me double-check:
| Name of Ion | Nitride | Nitrate | Sulfate | Sulfite | Ammonium |
|---------------|---------|---------|---------|---------|----------|
| Charge on Ion | –3 | –1 | –2 | –2 | +1 |
| Type & Number | 1 N | 1 N, 3 O| 1 S, 4 O| 1 S, 3 O| 1 N, 4 H |
| Formula | N³⁻ | NO₃¹⁻ | SO₄²⁻ | SO₃²⁻ | NH₄¹⁺ |
✔ All match Model 1 exactly.
So the task is already completed correctly in the image. But since the instruction says “complete the table below,” and the table is already full, perhaps the student was meant to copy or verify it.
But based on what’s shown, everything is correct.
Final Answer: The table is already correctly completed as shown. No changes needed.
Parent Tip: Review the logic above to help your child master the concept of chemistry ionic compounds polyatomic ions worksheet answers.
