Ionic Bonding Worksheet-1.pdf - Granton.K12.wi.us - Free Printable

You're working on an Ionic Bonding Worksheet that asks you to:

1. Draw atomic diagrams (Bohr models) for each element in the pair.
2. Show electron transfer using arrows (from metal to nonmetal).
3. Draw the resulting ionic compound (showing ions with charges).
4. Fill in a table with:
- Atoms involved
- Valence electrons each atom has
- Direction of electron transfer
- Ions formed in the product

Let’s go through each reaction one by one, following the sample (Li + F → LiF).

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## 🧪 Reaction 1: Li + Cl → LiCl

🔬 Atomic Diagrams:

- Lithium (Li): Atomic number = 3 → Electron config: 2,1 → 1 valence electron
- Chlorine (Cl): Atomic number = 17 → Electron config: 2,8,7 → 7 valence electrons

⚡ Electron Transfer:

- Li gives its 1 valence electron to Cl.
- Arrow from Li’s outer shell → Cl’s outer shell.

✔ Resulting Compound:

- Li⁺ (loses 1 e⁻)
- Cl⁻ (gains 1 e⁻)
- Formula: LiCl

📋 Table Entry:

| Atoms | Valence electrons | Electron transfer from/to each atom | Ions formed in the product |
|-------|-------------------|-------------------------------------|----------------------------|
| Li | 1 | Loses 1 electron to Cl | Li⁺ |
| Cl | 7 | Gains 1 electron from Li | Cl⁻ |

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## 🧪 Reaction 2: Ca + O → CaO

🔬 Atomic Diagrams:

- Calcium (Ca): Atomic number = 20 → Electron config: 2,8,8,2 → 2 valence electrons
- Oxygen (O): Atomic number = 8 → Electron config: 2,6 → 6 valence electrons

⚡ Electron Transfer:

- Ca gives 2 electrons to O (since O needs 2 to complete octet).
- Two arrows from Ca’s outer shell → O’s outer shell.

✔ Resulting Compound:

- Ca²⁺ (loses 2 e⁻)
- O²⁻ (gains 2 e⁻)
- Formula: CaO

📋 Table Entry:

| Atoms | Valence electrons | Electron transfer from/to each atom | Ions formed in the product |
|-------|-------------------|-------------------------------------|----------------------------|
| Ca | 2 | Loses 2 electrons to O | Ca²⁺ |
| O | 6 | Gains 2 electrons from Ca | O²⁻ |

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## 🧪 Reaction 3: Be + F → BeF₂

🔬 Atomic Diagrams:

- Beryllium (Be): Atomic number = 4 → Electron config: 2,2 → 2 valence electrons
- Fluorine (F): Atomic number = 9 → Electron config: 2,7 → 7 valence electrons

⚠️ Note: Since BeF₂ forms, two F atoms are needed to accept 2 electrons from Be.

⚡ Electron Transfer:

- Be gives 1 electron to each of two F atoms.
- Two arrows: from Be → each F atom.

✔ Resulting Compound:

- Be²⁺ (loses 2 e⁻)
- Each F becomes F⁻ (gains 1 e⁻ each)
- Formula: BeF₂

📋 Table Entry:

| Atoms | Valence electrons | Electron transfer from/to each atom | Ions formed in the product |
|-------|-------------------|-------------------------------------|----------------------------|
| Be | 2 | Loses 2 electrons (1 to each F) | Be²⁺ |
| F | 7 | Gains 1 electron from Be | F⁻ |

> 💡 Note: Since there are two F atoms, you may want to note “each F gains 1 e⁻” or draw two F atoms in your diagram.

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## 🧪 Reaction 4: Mg + S → MgS

🔬 Atomic Diagrams:

- Magnesium (Mg): Atomic number = 12 → Electron config: 2,8,2 → 2 valence electrons
- Sulfur (S): Atomic number = 16 → Electron config: 2,8,6 → 6 valence electrons

⚡ Electron Transfer:

- Mg gives 2 electrons to S.
- Two arrows from Mg → S.

✔ Resulting Compound:

- Mg²⁺ (loses 2 e⁻)
- S²⁻ (gains 2 e⁻)
- Formula: MgS

📋 Table Entry:

| Atoms | Valence electrons | Electron transfer from/to each atom | Ions formed in the product |
|-------|-------------------|-------------------------------------|----------------------------|
| Mg | 2 | Loses 2 electrons to S | Mg²⁺ |
| S | 6 | Gains 2 electrons from Mg | S²⁻ |

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## 🧪 Reaction 5: K + F → KF

🔬 Atomic Diagrams:

- Potassium (K): Atomic number = 19 → Electron config: 2,8,8,1 → 1 valence electron
- Fluorine (F): Atomic number = 9 → Electron config: 2,7 → 7 valence electrons

⚡ Electron Transfer:

- K gives 1 electron to F.
- One arrow from K → F.

✔ Resulting Compound:

- K⁺ (loses 1 e⁻)
- F⁻ (gains 1 e⁻)
- Formula: KF

📋 Table Entry:

| Atoms | Valence electrons | Electron transfer from/to each atom | Ions formed in the product |
|-------|-------------------|-------------------------------------|----------------------------|
| K | 1 | Loses 1 electron to F | K⁺ |
| F | 7 | Gains 1 electron from K | F⁻ |

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## ✔ Summary Table (Filled Out):

| Reactions | Atoms | Valence electrons | Electron transfer from/to each atom | Ions formed in the product |
|-------------------|-------|-------------------|--------------------------------------------|----------------------------|
| 1) Li + Cl → LiCl | Li | 1 | Loses 1 electron to Cl | Li⁺ |
| | Cl | 7 | Gains 1 electron from Li | Cl⁻ |
| 2) Ca + O → CaO | Ca | 2 | Loses 2 electrons to O | Ca²⁺ |
| | O | 6 | Gains 2 electrons from Ca | O²⁻ |
| 3) Be + F → BeF₂ | Be | 2 | Loses 2 electrons (1 to each F) | Be²⁺ |
| | F | 7 | Gains 1 electron from Be | F⁻ |
| 4) Mg + S → MgS | Mg | 2 | Loses 2 electrons to S | Mg²⁺ |
| | S | 6 | Gains 2 electrons from Mg | S²⁻ |
| 5) K + F → KF | K | 1 | Loses 1 electron to F | K⁺ |
| | F | 7 | Gains 1 electron from K | F⁻ |

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## 🖍️ Drawing Tips for Diagrams:

- Draw circles for energy levels (shells).
- Put dots for electrons — place them around the circle.
- For metals (left side): show electron(s) leaving → arrow pointing to nonmetal.
- For nonmetals (right side): show electron(s) being added → arrow pointing inward.
- In product diagram, show ions with charges (e.g., Li⁺, Cl⁻) and no shared electrons — they’re now separate ions.

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✔ You’ve now completed all 5 reactions! This worksheet helps visualize how ionic bonds form via electron transfer — metals lose electrons to become cations, nonmetals gain them to become anions.

Let me know if you’d like me to generate actual drawings or printable versions!