Chemistry Vocabualry

4. the fundamental unit of matter that contains a nucleus, protons, neutrons, and electrons
5. characteristics of a substance that can be observed or measured without changing its chemical composition
7. substance that is doing the dissolving.
13. having a regular, repeating pattern.
14. two or more substances mixed together whose composition is not fixed.
15. elements that are dull (not shiny) and that are poor conductors of thermal energy and electric current.
17. a table that arranges chemical elements based on their atomic number, electron configuration, and recurring chemical properties
18. substance that is being dissolved
19. semiconductors that are elements that have properties of both metals and nonmetals.

1. the ability of one substance to dissolve another.
2. elements that are shiny and are good conductors of thermal energy and electric current.
3. anything that occupies space and has mass.
6. a property of matter that describes a substance based on its ability to change into a new substance with different properties.
8. a mixture that appears to be a single substance but is composed of particles of two or more substances that are distributed evenly amongst each other.
9. consist of atoms of two or more elements that are joined to chemical bonds.
10. a substance that cannot be broken down chemically into simpler kinds of matter.
11. each horizontal row of elements on a periodic table.
12. each vertical row of elements on a periodic table.
16. a group of atoms held together by covalent bonds.