Atoms and Elements

5. the state of matter in which the volume and shape of a substance are fixed
7. a substance made up of atoms of two or more different elements joined by chemical bonds
9. bond a lasting attraction between atoms, ions, or molecules that enables the formation of chemical compounds
11. anything that has mass and takes up space
12. substance a form of matter that has a constant chemical composition and distinct, consistent properties throughout the sample
13. a measure of the amount of matter in an object
14. the amount of space that an object takes up, or occupies
15. smallest unit of an element that maintains the properties of that element
16. the state of matter that has a definite volume but not a definite shape

1. the amount of force exerted per unit area of a surface
2. a group of atoms that are held together by chemical forces; a molecule is the smallest unit of a compound that keeps all the properties of that compound
3. table a tabular display of the 118 known chemical elements, organized by their atomic number
4. a measure of how hot (or cold) something is; specifically, a measure of the average kinetic energy of the particles in an object
6. a measure of how much mass is contained within a specific volume of a substance. It describes how tightly or loosely packed the "stuff"inside an object is
8. substance that cannot be separated or broken down into simpler substances by chemical means
9. of state the change of a substance from one physical state to another
10. Energy the total kinetic energy of a substance's particles