Valence Electrons and Ions Practice You will need a Periodic Table for these practice questions. 1. What is the symbol of a bromine ion? Question 1 of 12 Loading… 2. What is the symbol for a beryllium ion? Question 2 of 12 Loading… 3. What is the symbol of a barium ion? Question 3 of 12 Loading… 4. What is the symbol of a selenium ion? Question 4 of 12 Loading… 5. How many occupied electron shells does silicon have? 1 4 7 5 3Question 5 of 12 Loading… 6. How many occupied electron shells does iodine have? 2 4 1 5 3Question 6 of 12 Loading… 7. How many occupied electron shells does hydrogen have? 3 2 5 6 1Question 7 of 12 Loading… 8. How many occupied electron shells does strontium have? 5 3 4 1 6Question 8 of 12 Loading… 9. How many valence electrons does a neutral atom of tellurium have? 1 3 8 6 7Question 9 of 12 Loading… 10. How many valence electrons does a neutral atom of iodine have? 2 7 6 5 8Question 10 of 12 Loading… 11. How many valence electrons does a neutral atom of hydrogen have? 4 1 3 5 2Question 11 of 12 Loading… 12. How many valence electrons does a neutral atom of arsenic have? 1 8 7 5 2Question 12 of 12 Loading… Loading…