Matter Vocabulary Review

4. the area around the nucleus of an atom where electrons are located
6. a diagram that shows an atom's nucleus surrounded by an electron cloud
9. a set of letters that are used to represent an element
12. The basic building blocks of matter that make up everyday objects
13. A substance made up of two or more different elements joined by chemical bonds
14. the number of protons plus the number of neutrons contained in an atom's nucleus
17. the center of an atom that contains the protons and neutrons
18. positively charged subatomic particles found in the nucleus
19. negative charged subatomic particles found in the electron cloud
21. the substance that does the dissolving in a solution
22. the electrons on the outer shell of an atom that are involved in forming bonds

1. A sample of matter, either a single element or a single compound
2. A combination of two or more substances that are not chemically combined
3. a mixture that is evenly mixed all the way through
5. a mixture that is not uniform throughout.
7. anything that has mass and takes up space
8. a pure substance made of only one kind of atom
10. the number of protons or electrons contained in a neutral atom of an element
11. a mixture that forms when one substance dissolves another
15. Two or more atoms chemically combined
16. neutral charged subatomic particles found in the nucleus
20. the substance that is dissolved in a solution