- SiH₄: Silicon is central, bonded to four H atoms. No lone pairs on Si. Each H has 2 electrons in the bond.
- H₂S: Sulfur is central, bonded to two H atoms. Sulfur has two lone pairs.
- N₂: Two N atoms triple-bonded. Each N has one lone pair.
- SiH₃P: Phosphorus is central, bonded to three H atoms and one Si atom. P has one lone pair. Si is bonded to three H atoms and P.
- CS₂: Carbon is central, double-bonded to two S atoms. Each S has two lone pairs.
- CH₂O: Carbon is central, double-bonded to O and single-bonded to two H atoms. O has two lone pairs.
- NH₃S: Sulfur is central, bonded to three H atoms and one N atom. S has one lone pair. N is bonded to three H atoms.
- BrCN: Carbon is central, triple-bonded to N and single-bonded to Br. Br has three lone pairs. N has one lone pair.
- NO⁻: Nitrogen is central, double-bonded to O. N has one lone pair and a formal negative charge. O has two lone pairs.
- F₂: Two F atoms single-bonded. Each F has three lone pairs.
- C₂H₄: Two C atoms double-bonded. Each C is bonded to two H atoms. Each C has no lone pairs.
- SeBr₂: Selenium is central, bonded to two Br atoms. Se has two lone pairs. Each Br has three lone pairs.
- NH₃: Nitrogen is central, bonded to three H atoms. N has one lone pair.
- HNO₂: Nitrogen is central, double-bonded to one O and single-bonded to OH group. The O in OH has two lone pairs. The double-bonded O has two lone pairs. N has one lone pair.
- CH₃N: Nitrogen is central, bonded to three H atoms and one C atom. N has one lone pair. C is bonded to three H atoms.
- AsF₃: Arsenic is central, bonded to three F atoms. As has one lone pair. Each F has three lone pairs.
- N₂H₄: Two N atoms single-bonded. Each N is bonded to two H atoms. Each N has one lone pair.
- C₂F₅H: Two C atoms single-bonded. One C is bonded to three F atoms and the other C. The other C is bonded to two F atoms, one H atom, and the first C. Each C has no lone pairs.
- CH₂O₂: Carbon is central, double-bonded to one O and single-bonded to OH group. The O in OH has two lone pairs. The double-bonded O has two lone pairs. C has no lone pairs.
- C₂H₅NO: Carbon chain: C-C. First C bonded to three H. Second C bonded to two H, one O (double bond), and one N. N bonded to one H and has one lone pair.
Parent Tip: Review the logic above to help your child master the concept of electron dot worksheet.
