Across
- 2. a substance made of two or more elements chemically combined
- 5. two or more atoms joined together
- 8. makes a ringing sound when struck
- 10. (4,9) does not allow heat or electricity to pass easily
- 12. element found in every living thing
- 15. scientist who arranged the first periodic table
- 17. breaks or shatters easily instead of bending
- 18. (4,9) allows heat or electricity to pass through easily
- 20. a horizontal row on the periodic table
- 23. one- or two-letter abbreviation used for an element
- 24. (7,5) temperature at which a solid becomes a liquid; high in metals
- 25. can be drawn out into wires
- 27. can be hammered or shaped without breaking
Down
- 1. shiny surface that reflects light
- 3. (8,5) chart that organises all known elements by atomic number
- 4. Greek philosopher who proposed that matter is made of tiny particles
- 6. a vertical column on the periodic table
- 7. state of most non-metals at room temperature
- 9. most common element in the universe
- 11. element in group 6 and period 2; supports burning and life
- 13. quick to combine with other elements or compounds
- 14. element in group 1 and period 2; a soft reactive metal
- 15. found on the left side of the periodic table; shiny and conducts heat
- 16. 118 types or “flavours” of substance found on the periodic table
- 19. mass per unit volume; how tightly matter is packed
- 21. state of most metals at room temperature
- 22. found on the right side of the periodic table; often dull and brittle
- 26. not shiny; opposite of lustrous
- 28. smallest unit of an element that still has its properties