Across
- 2. atomic number of 1
- 3. is the name of the atom
- 6. its symbol is Au
- 8. its symbol is Ag
- 11. it has 8 protons
- 12. the table that shows all the elements
- 15. the vertical side of the periodic table
- 17. its symbol is Ar
- 19. its atomic number is 6
- 20. has atomic mass of 32.06
Down
- 1. its symbol is Na
- 4. the top number of the element
- 5. has 17 electrons
- 7. the horizontal side of the periodic table
- 9. atomic mass of 55.845
- 10. has an atomic number of 2
- 13. has 36 protons
- 14. the weight of the atom
- 16. the same value as the atomic number
- 18. the capitalized letter that represents the atom