Across
- 2. the columns of the periodic table
- 3. electrons that have the highest energy level
- 4. the rows of the periodic table
- 7. is in group 1 but is actually a nonmetal
- 8. the elements in the blue section of the periodic table
- 11. is in Group 18 but only has 2 valence electrons
- 12. can either lose or share electrons when they combine with other elements
- 13. lie along the zigzag line in the periodic table
- 16. The elements within a ___ always have the same number of valence electrons
- 17. any particle smaller than an atom
- 18. the elements in the orange section of the periodic table
Down
- 1. the atomic number of an element is the number of __ in the nucleus
- 5. atoms tend to be more stable if they have __ valence electrons
- 6. bond the force of attraction that holds atoms together
- 9. element symbol surrounded by dots
- 10. the one or two letters that represent an element in the periodic table
- 14. the elements in each group have similar _____
- 15. The Group 18 elements have 8 valence electrons