Across
- 2. Yellow and poisonous powder.
- 5. Proton and neutron make the _______________ of an atom.
- 7. You can use this method to separate the components of a compound.
- 8. The ability of something that can be shaped into something else without breaking.
- 10. The lightest element in the universe.
- 13. One of the inert gases.
- 14. This metal has the melting point of -38.8 degree Celcius.
Down
- 1. Non-metal that conducts electricity.
- 3. This metal explodes in water.
- 4. Named after Nicolaus Copernicus, physicist, but discovered by Sigurd Hofmann.
- 6. A solid form of the element carbon with its atoms arranged in a crystal structure.
- 9. Used as an antiseptic substance.
- 11. This element combines chemically with iron to form rust.
- 12. A substance that combines more than one metal or mixes a metal with other non-metallic elements.