Across
- 5. A thing that is composed of 2 or more elements
- 7. A portion of time
- 9. Any of the elements in group IA on the periodic table
- 11. A substance that is not metal
- 12. An essential part of something molecules A group of atoms
- 16. The theory that explains the physical properties of matter
- 18. A stable particle with positive
- 21. Any of the elements in group IIA on the periodic table
- 23. Anything that has mass and volume and takes up space
- 24. An ordered table of the ordered elements
- 25. A tiny portion of matter
- 27. A dense organelle that contains dna
- 28. A large gathering of things
- 29. Movement of solvent molecules through a selective permeable region
Down
- 1. The wide spreading of something
- 2. A number of things
- 3. many protons it has
- 4. The total amount of protons and neutrons in a nucleous
- 6. A representative character
- 8. The identity of an element depending on
- 10. A metal made by combining 2 or more metallic elements
- 13. A stable particle with negative electricity
- 14. Smaller than or occurring in an atom
- 15. A particle without an electric charge
- 17. Any of the elements in group VIIA on the periodic table
- 19. The number of protons in an atom nucleus
- 20. A capability to perform work
- 22. An intermediate property, that has some metallic properties
- 26. The smallest particle that can exist
- 30. A solid conductive material