Across
- 3. Has a definite shape and definite volume
- 7. Contains the proton and the neutron
- 9. Roams outside the nucleus and is negative
- 10. Has mass and volume
- 11. The number of how many protons the element has and the place it is on, on the periodic table.
- 14. You use this number to find the mass number
- 15. Has and indefinite shape but has a definite volume
Down
- 1. The rounded up number of the atomic mass.
- 2. Inside of the nucleus and is positive
- 4. Made up of a bunch of the same types of atoms
- 5. Also inside the nucleus but has is neutral
- 6. The basic unit of a chemical element
- 8. The letter or two letters that abbreviate the element
- 12. amount of stuff in an object
- 13. Has no definite volume or shape