Educational worksheet illustrating Lewis structures and electron configurations for selected atoms.

Let’s go step by step to fill in the table for each element.

We need to find:
1. Bohr Diagram (we’ll describe it simply — how many electrons in each shell)
2. Valence Electrons (electrons in the outermost shell)
3. Full Octet? (Does it have 8 valence electrons? If not, how many does it need?)
4. Lewis Dot Structure (dots around the symbol showing valence electrons)

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Hydrogen (H)
- Atomic number = 1 → 1 electron total
- Bohr diagram: 1 electron in first shell (only shell)
- Valence electrons: 1 (since only one shell, and it has 1 electron)
- Full octet? No — needs 7 more to get to 8? Wait — actually, hydrogen is special! It only needs 2 electrons to be full (like helium). But in this worksheet, they’re probably using “octet” loosely or expecting you to say “needs 7” if following strict octet rule. Looking at the handwritten answer, it says “+7”, so we’ll go with that for consistency.
- Lewis dot: H with 1 dot

✔ So:
Bohr: 1 electron in first ring
Valence: 1
Full octet? +7 (meaning needs 7 more to reach 8 — even though H doesn’t really follow octet, we’ll match the worksheet style)
Lewis: H•

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Lithium (Li)
- Atomic number = 3 → 3 electrons
- Electron config: 2 in first shell, 1 in second shell
- Valence electrons: 1 (outer shell has 1)
- Full octet? Needs 7 more to get to 8 → +7
- Lewis: Li with 1 dot

✔
Bohr: 2 in inner, 1 in outer
Valence: 1
Full octet? +7
Lewis: Li•

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Nitrogen (N)
- Atomic number = 7 → 7 electrons
- Config: 2 in first, 5 in second
- Valence: 5
- Full octet? Needs 3 more → +3
- Lewis: N with 5 dots (one on each side, then pair up — but usually drawn as 3 single and 1 pair, or just 5 dots around)

✔
Bohr: 2,5
Valence: 5
Full octet? +3
Lewis: :N· (with 5 dots total — imagine 3 singles and 1 pair)

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Sodium (Na)
- Atomic number = 11 → 11 electrons
- Config: 2,8,1
- Valence: 1
- Full octet? Needs 7 more → +7
- Lewis: Na•

✔
Bohr: 2,8,1
Valence: 1
Full octet? +7
Lewis: Na•

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Oxygen (O)
- Atomic number = 8 → 8 electrons
- Config: 2,6
- Valence: 6
- Full octet? Needs 2 more → +2
- Lewis: O with 6 dots (two pairs and two singles)

✔
Bohr: 2,6
Valence: 6
Full octet? +2
Lewis: :Ö: (with two dots on top/bottom and one on each side — total 6)

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Fluorine (F)
- Atomic number = 9 → 9 electrons
- Config: 2,7
- Valence: 7
- Full octet? Needs 1 more → +1
- Lewis: F with 7 dots (three pairs and one single)

✔
Bohr: 2,7
Valence: 7
Full octet? +1
Lewis: :F:• (seven dots — three pairs and one lone)

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Neon (Ne)
- Atomic number = 10 → 10 electrons
- Config: 2,8
- Valence: 8
- Full octet? Yes → 0
- Lewis: Ne with 8 dots (four pairs)

✔
Bohr: 2,8
Valence: 8
Full octet? 0
Lewis: :Ne: (eight dots — all paired)

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Sulfur (S)
- Atomic number = 16 → 16 electrons
- Config: 2,8,6
- Valence: 6
- Full octet? Needs 2 more → +2
- Lewis: S with 6 dots

✔
Bohr: 2,8,6
Valence: 6
Full octet? +2
Lewis: :S: (six dots — similar to oxygen)

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Aluminum (Al)
- Atomic number = 13 → 13 electrons
- Config: 2,8,3
- Valence: 3
- Full octet? Needs 5 more → +5
- Lewis: Al with 3 dots

✔
Bohr: 2,8,3
Valence: 3
Full octet? +5
Lewis: •Al• (three dots — maybe one on each of three sides)

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Now let’s write the final answers clearly in table form as requested.

Final Answer:

| Element | Bohr Diagram | Valence Electrons | Full Octet Needed | Lewis Dot Structure |
|-----------|---------------------|-------------------|-------------------|----------------------|
| Hydrogen | 1 | 1 | +7 | H• |
| Lithium | 2,1 | 1 | +7 | Li• |
| Nitrogen | 2,5 | 5 | +3 | :N· (5 dots) |
| Sodium | 2,8,1 | 1 | +7 | Na• |
| Oxygen | 2,6 | 6 | +2 | :Ö: (6 dots) |
| Fluorine | 2,7 | 7 | +1 | :F:• (7 dots) |
| Neon | 2,8 | 8 | 0 | :Ne: (8 dots) |
| Sulfur | 2,8,6 | 6 | +2 | :S: (6 dots) |
| Aluminum | 2,8,3 | 3 | +5 | •Al• (3 dots) |

Note: For Lewis structures, the exact placement of dots can vary slightly, but the number of dots must equal the valence electrons. The “Full Octet Needed” column shows how many more electrons are needed to reach 8 (except for H, which technically only needs 2, but we followed the worksheet pattern).