Chemistry & Physics Vocab Review Lessons 1-3

1. Particle in an atom which has no charge at all.
3. Type of electrons in the very outside energy level of the atom.
5. The ability of something to float.
6. Chemistry and Physics is the study of _____ and energy
9. This is what charged particles are attracted to - their opposite, ie. positive to negative, and vice versa.
12. Number of protons in an atom.
15. When molecules are bound together but have no specific form, they are in this state.
16. How much matter is inside something.
17. An atom which has lost or gained an electron and has a charge.
18. The state of matter with particles that don't have a specific volume or shape it is called this.
20. A positively charged ion.
21. The levels of an atom where electrons orbit the nucleus.
23. Newton's law that says that liquid flows more readily when heat is added.
24. Name for protons and neutron together.
26. The temperature that makes a liquid turn into a solid is its _____ point.
27. If something has high _________, it means there are a lot of particles packed tightly together.
28. The amount of space something takes up; all matter has this.

2. A change in this is what makes one state of matter change into another state.
4. The smallest particle of an element that still keeps the properties of that element.
7. As molecules on the surface of water stick together, they form an invisible "skin" called surface _____.
8. Positively charged particle in an atom.
10. The ability of a material to bend or change shape.
11. Gases such as argon, that are stable, nonreactive gases.
13. The temperature at which a liquid turns into a gas is its ______ point.
14. Molecule which contains at least two different elements combined.
16. The temperature at which a solid turns into a liquid is its _____ point.
19. A negatively charged ion.
22. Center of the atom which contains the protons and neutrons.
25. Negatively charged particle in an atom.