Across
- 2. How many periods are there in the Periodic Table?
- 4. How many groups are in the Periodic Table?
- 7. Vertical columns in the Periodic Table
- 10. What makes up matter
- 12. Chart of the elements
- 14. Horizontal rows in the Periodic Table
- 15. Has more than one type of molecule
- 16. Temperature which turns a solid into a liquid
- 18. How tightly packed something is
Down
- 1. Has one or more of the same type of molecules
- 3. title of substance
- 5. First element in Periodic Table
- 6. Temperature which turns a liquid into a gas
- 8. Number of protons and Neutrons
- 9. Temperature which turns a liquid into a solid
- 10. The ratio of the average mass of atoms of an element
- 11. The number of protons in an atom
- 13. Symbol is Au
- 16. What elements make up
- 17. Shortened version of the element’s name