Across
- 3. what is Zn
- 4. what Nobel gas has the atomic number of 10
- 5. what is the name of group 1
- 9. negative charged partial
- 10. what does the atomic number represents
- 12. the rule that says you need 8 Valence electrons to be stable
- 13. Electrons in the outermost layer are called
- 15. What is the letter in the middle of the element box
- 18. the side to sides are called what
- 19. protons + neutrons: atomic mass
Down
- 1. who created the perdioc table
- 2. the up and down are called what
- 6. what is the name of the element with a atomic number 13
- 7. what has a positive charge
- 8. what group is Iron in
- 11. what is group 18 called
- 14. what alkali metal is Li
- 16. what alkaline earth metal is Ba
- 17. neutrons are___ atoms
- 20. the is the element C