Chemistry Review

3. (two words, no spaces) formed when atoms share electrons
4. (three words, no spaces) the way molecules in a substance move around relative to each other
5. (two words, no spaces) where a substance may appear different, but no new substance is formed
9. a negative subatomic particle that orbits the nucleus
11. (two words, no spaces) a pull between two molecules that is always the same for a substance
13. (two words, no spaces) these form when atoms transfer or share electrons
15. a different form of an element that has the same number of protons but a different number of neutrons
16. (two words, no spaces) something that results in a new substance with different properties
18. a positive subatomic particle
20. (two words, no spaces) the number of neutrons and protons in an element
21. to provide evidence that goes against a claim
22. (two words, no spaces) formed when an atom transfers an electron to another atom
23. (two words, no spaces) the energy that an object has because it is moving

1. (two words, no spaces) this is found in the highest unfilled energy level
2. the building blocks of matter
3. (two words, no spaces) tells you the number of each kind of atom in a molecule.
6. anything that takes up space and has mass
7. the relative size of things
8. a neutral subatomic particle
10. a measure of how hot or cold something is
12. a noticeably different form or state of the same substance
14. a fundamental item that can't be easily broken into smaller pieces
17. (two words,no spaces) the number of protons present in an element
19. a group of atoms joined together in a particular way