- CH₄: Carbon is central, bonded to four H atoms with single bonds. No lone pairs on carbon.
- NH₃: Nitrogen is central, bonded to three H atoms with single bonds. One lone pair on nitrogen.
- O₂: Two O atoms double-bonded. Each O has two lone pairs.
- HCl: H bonded to Cl with a single bond. Three lone pairs on Cl.
- C₂H₄: Two C atoms double-bonded. Each C bonded to two H atoms with single bonds. No lone pairs.
- OH⁻: O bonded to H with a single bond. Three lone pairs on O and a negative charge.
- H₂S: S is central, bonded to two H atoms with single bonds. Two lone pairs on sulfur.
- CO₂: C is central, double-bonded to two O atoms. Each O has two lone pairs. No lone pairs on carbon.
- H₂: Two H atoms bonded with a single bond. No lone pairs.
Parent Tip: Review the logic above to help your child master the concept of lewis dot covalent bond worksheet.