Valence Electrons and Ions Practice You will need a Periodic Table for these practice questions. 1. What is the symbol for a magnesium ion? Question 1 of 12 Loading… 2. What is the symbol for a potassium ion? Question 2 of 12 Loading… 3. What is the symbol of a gallium ion? Question 3 of 12 Loading… 4. What is the symbol of a tellurium ion? Question 4 of 12 Loading… 5. How many occupied electron shells does zinc have? 3 4 2 5 6Question 5 of 12 Loading… 6. How many occupied electron shells does sodium have? 6 4 5 3 1Question 6 of 12 Loading… 7. How many occupied electron shells does antimony have? 4 1 5 6 2Question 7 of 12 Loading… 8. How many occupied electron shells does nickel have? 1 3 5 2 4Question 8 of 12 Loading… 9. How many valence electrons does a neutral atom of carbon have? 2 8 7 4 1Question 9 of 12 Loading… 10. How many valence electrons does a neutral atom of antimony have? 2 5 6 4 8Question 10 of 12 Loading… 11. How many valence electrons does a neutral atom of tellurium have? 7 1 8 2 6Question 11 of 12 Loading… 12. How many valence electrons does a neutral atom of fluorine have? 8 7 3 5 1Question 12 of 12 Loading… Loading…