Chemistry Vocabulary

2. One or more of the same atoms bonded together. 118 of these on the periodic table.
6. Gas to solid
8. Positive charge, found in the nucleus. Determines what the element is.
9. Change when matter changes it’s appearance but a new substance is not formed.
13. Particles are close together, strongly attracted, locked in a pattern, vibrate in place, fixed shape and volume.
16. Gas to liquid
18. Theory that helps to explain the physical characteristics of matter. All matter is made up of tiny particles that are constantly moving
20. Smallest particles that cannot be divided further. Building blocks of matter
22. Central region of the atom.
23. Liquid to gas
24. Solid to liquid

1. Mixture with two or more types of particles that you can see or feel.
3. Neutral charge, found in the nucleus.
4. One element or one compound
5. Mixture with two or more types of particles but look like only one.
7. Change when the atoms in the matter connect to form a new substance with different characteristics. Irreversible.
10. Two or more different elements combined chemically.
11. Particles are slightly apart, some attraction, able to slide past, spaces between are larger, indefinite shape, fixed volume.
12. Particles are far apart, can move in any direction, weak attraction, no fixed shape, no fixed volume, expand to fill the container, move rapidly in all directions.
14. Solid to gas
15. Liquid to solid
17. Group of atoms bonded together. Can be the same or different atoms.
19. Negative charge, found orbiting the nucleus. Determine the chemical properties of elements and how they react.
21. Anything that has mass and takes up space
24. Two or more elements or compounds that are physically combined