Across
- 3. The charge of a neutron
- 5. A property of non-metals that makes them break easily
- 7. The charge of an electron
- 9. The only liquid metal at room temperature
- 10. A substance made of two or more elements chemically combined
- 13. The ability of a metal to be hammered into thin sheets
- 14. A pure substance that consists of only one type of atom
- 16. Group 17 elements, known for being highly reactive non-metals
- 17. The type of mixture that looks the same throughout
- 18. A property of metals that allows them to be drawn into wires
Down
- 1. METALS The most reactive group of metals
- 2. A subatomic particle with a positive charge
- 3. GASES The group of unreactive elements in Group 18
- 4. The smallest subatomic particle
- 6. The element in Group 2, Period 6
- 8. The most reactive halogen
- 11. The horizontal rows of the periodic table
- 12. The type of mixture where you can see different substances
- 15. The vertical columns in the periodic table