Across
- 3. - What element has the atomic number of 87?
- 4. - What element has the atomic number of 25?
- 7. - What are the Columns called?
- 9. - What element has the atomic number of 45?
- 11. - What element is Ga?
- 12. - What element has the atomic number of 28?
Down
- 1. - This element is in a pencil?
- 2. - What element has the atomic number of 35?
- 5. - Na is the chemical symbol for ... ?
- 6. - What element has the atomic number of 56?
- 8. - What element has an atomic mass of 127?
- 10. - The rows are called groups or ... ?
