Matter and Density

3. the atomic mass rounded to the nearest whole number; equal to the number of neutrons plus the number of protons
5. atoms and molecules not moving much, stuck in place
10. volume of a ___ is length times width times height
11. no charge (neural)
15. atoms and molecules moving so much they break apart, electrons are pulled off the atoms
17. the building blocks of matter
18. a substance made of one type of atom
20. how much stuff is in an object and how tightly packed it is
21. kg/m^3 is an example of density ___
23. average mass of all isotopes
24. a chart that organizes elements based on their atomic number and chemical properties
25. atoms bonded together
26. a way to write very large and very small numbers
27. positive (+) charge

1. atoms and molecules colliding and moving a lot, not at all stuck in place, can only be contained in a closed container
2. area around the nucleus of an atom where electrons move around
4. particles that are smaller than an atom including neutrons, protons, and electrons
6. atoms and molecules slipping and sliding around, not stuck in place, but easily contained
7. the center of the atom where neutrons and protons are; most of the mass
8. mass divided by volume
9. the symbol for each element on the periodic table
12. a way to show the subatomic particles in different types of atoms
13. volume of a ___ is 4.19 times the radius cubed
14. everything that is not energy or empty space
16. negative (-) charge
19. equal to the number of protons, also equal to the number of electrons
22. volume of a ___ is pi times the radius squared times the height