- Calcium: Ca with 2 dots (one on each side, or both on one side).
- Oxygen: O with 6 dots (2 on each of three sides, 1 on the fourth).
- Sulfur: S with 6 dots (same as oxygen, but labeled S).
- Lithium: Li with 1 dot.
- Boron: B with 3 dots (one on each of three sides).
- Fluorine: F with 7 dots (2 on each of three sides, 1 on the fourth).
- Xenon: Xe with 8 dots (2 on each side).
- Sodium: Na with 1 dot.
- Magnesium: Mg with 2 dots (one on each side, or both on one side).
- Cl₂: Cl—Cl with 3 lone pairs (6 dots) on each Cl atom.
- SO₂: S double bonded to each O, S has 1 lone pair, each O has 2 lone pairs; resonance structures possible.
- NH₃: N single bonded to each H, N has 1 lone pair (2 dots).
- H₃O⁺: O single bonded to each H, O has 1 lone pair (2 dots), and a + charge on O.
- C₂H₆: Two C atoms single bonded, each C bonded to 3 H atoms; no lone pairs on C or H.
- CH₂Cl₂: C single bonded to 2 H and 2 Cl atoms; each Cl has 3 lone pairs (6 dots).
Parent Tip: Review the logic above to help your child master the concept of lewis dot structure practice worksheet.
