- Fluorine F: Atomic number 9, Group number 7
- Chlorine Cl: Electron arrangement 2-8-8, Atomic number 17, Valence electrons 7, Total number of e- 18, Group number 7
- Sodium Na: Electron arrangement 2-8, Atomic number 11, Valence electrons 1, Total number of e- 10, Protons 11, Charge +1, Group number 1
- Nitrogen N: Electron arrangement 2-8, Atomic number 7, Valence electrons 5, Total number of e- 10, Protons 7, Charge -3, Group number 15
- Aluminum Al: Electron arrangement 2-8, Atomic number 13, Valence electrons 3, Total number of e- 10, Charge +3, Group number 13
- Calcium Ca: Electron arrangement 2-8-8, Atomic number 20, Valence electrons 2, Protons 20, Charge +2, Group number 2
- Sulfur S: Electron arrangement 2-8-8, Atomic number 16, Valence electrons 6, Protons 16, Group number 16
Parent Tip: Review the logic above to help your child master the concept of ions worksheet answers.
