Matter and Atoms

4. the strength and vitality required for sustained physical or mental activity
5. positively charged center of an atom made up of protons and neutrons
7. negatively charged, a subatomic particle of relatively low mass located outside the nucleus
11. materials ability to allow heat or electricity to flow
14. a metric unit of measurement
17. a materials ability to burn in the presence of air
18. substance ability to dissolve
21. how an element reacts to a change
22. positively charged, subatomic particle located in the nucleus
24. rotting or decomposing

1. is the force exerted by magnets when they attract or repel each other
2. measure of how close together the particles are
3. the identity of an element
6. something that causes the deterioration or eating away of metal
8. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
9. Color Change
10. anything that takes up space and has a mass
12. amount of space an object or substance occupies
13. the appearance of an elemnt
15. is a state in which is thick and sticky but still a semi-liquid consistency
16. atoms that contain the same number of protons but different numbers of neutrons
19. form of measurement
20. smallest particle of an element
23. total number of protons and neutrons
25. uncharged, subatomic particle located in the nucleus