Across
- 3. A metal used since ancient times for jewelry, very pretty when polished and for your thoughts!
- 5. Every element has one as well as its name
- 6. Made from two or elements chemically combined
- 8. The only liquid metal elementat room temperature
- 9. A poisonous green gas but good for killing bacteria in water
- 10. Formed by combining two hydrogen with one oxygen
- 12. Number of naturally occurring elements
- 14. Iron is this, but aluminum is not
- 16. Made from just one type of atom
- 19. The state of the element sulfur at room temperature
Down
- 1. A very reactive metal with water
- 2. Dark red, and the only liquid nonmetal at room temperature
- 4. Nearly the last metallic element in the alphabet and used in batteries
- 7. A very useful layout of all the elements (2 words)
- 11. The simplest bit of an element that still has the properties of that element
- 13. The number of atoms in a water molecule
- 15. Is it a gas, liquid, or solid? meaning the physical ? of the material
- 17. Only two elements are in this state at room temperature
- 18. Oxygen is in this state at room temperature