Periodic Table
Across
- 3. Elements that are malleable, ductile and lustrous.
- 6. The number of an element on the periodic table.
- 9. There are 92 of these that occur naturally.
- 10. A type of change which can't be reversed.
- 12. The lightest element.
- 13. A type of change which can easily be reversed.
- 17. A particle that is neither positive or negative.
- 19. A non-shiny material.
- 20. The elements in Group 7.
Down
- 1. Difficult to bend, will snap.
- 2. A positively charged particle.
- 4. mass The number of protons plus neutrons in an atom.
- 5. Elements with low melting points and are poor conductors.
- 7. The elements in Group 8.
- 8. The chemicals mixed together before a reaction.
- 9. A negatively charged particle.
- 11. Shiny.
- 13. The result of a chemical reaction
- 14. This element is essential for all life on Earth.
- 15. A row on the Periodic Table.
- 16. A column of elements on the Periodic Table.
- 18. This gas makes up 79% of the Earth's atmosphere.