Chemistry

3. A substance produced when elements combine and whose properties are different from each of the elements in it.
5. Positively charged central part of the atom
10. A mixture in which the individual parts can be seen.
14. Positively charged particle
15. Law of Conservation of _____ - can't be created or destroyed it can only change form.

1. Element that is usually gases at room temperature, brittle, and are poor conductors of electricity
2. The number of protons and electrons in an element
4. Elements that are usually ductile and malleable and are good conductors of heat and electricity
6. A mixture that is the same throughout and you can not see the individual parts
7. Neutrally charged particle
8. an element that has characteristics of both metals and non metals
9. anything that has mass and takes up space
11. a natural or synthetic material that can not be broken down into simpler parts
12. Negatively charged particle
13. a very small particle that makes up most types of matter