Which elements have the same number of valence electrons? Match them.

Question

Carbon
hydrogen
oxygen
helium

Potassium
Silicon
Sulphur
Neon

Answer 1

To match the elements based on their number of valence electrons:

1. Carbon (C) - 4 valence electrons

   • Matches with Silicon (Si) - 4 valence electrons

2. Hydrogen (H) - 1 valence electron

   • Matches with Potassium (K) - 1 valence electron

3. Oxygen (O) - 6 valence electrons

   • Matches with Sulphur (S) - 6 valence electrons

4. Helium (He) - 2 valence electrons

   • Matches with Neon (Ne) - 2 valence electrons

So the matches would be:

• Carbon - Silicon
• Hydrogen - Potassium
• Oxygen - Sulphur
• Helium - Neon