Matter and mixtures - Topics 1-3

2. Particles _____________ each other
6. Type of matter where the particles are relatively close together
8. Appear on the periodic table (oxygen, nitrogen, gold, etc)
11. Each _________ substance has its own kind of particle, different from the particles of other pure substances
12. Planetary model of the atom
14. Center of the atom
16. Process of decomposing a chemical compound by passing an electrical current through it.
19. Workplace Hazardous Materials and Information System
20. Type of mechanical mixture with fine particles evenly distributed through another substance (clouds)
22. Plum pudding model of the atom
23. Negatively charged particle in the atom cloud
25. Type of matter where the particles are the furthest apart
26. Type of mechanical mixture with large particles that will settle (charcoal in water)
29. Uncharged particle in the atomic nucleus
30. Positively charged particle in the atomic nucleus

1. Solid, liquid and gas; has a mass and a volume
3. Effect produced when light scatters through a colloid
4. Particles at a __________ temperature move faster on average than particles at a lower temperature
5. Type of reaction where no new substance is produced
7. Synonym for mechanical mixture
9. Model of the atom currently used (Schrodinger and de Broglie)
10. Solar system model of the atom
11. All matter is made up of tiny __________
13. Type of mechanical mixture with liquids dispersed through liquids (mayonnaise)
15. Synonym for a solution
17. Pure substances such as salt, sugar and water
18. Substance that contains 2 or more pure substances
21. Particles are always ______________
24. Type of reaction where a new substance is produced
27. Type of matter that has a defined shape and form
28. Type of mechanical mixture such as granite