Across
- 3. Which state of matter has a defined shape and a defined volume?
- 4. An ion with a negative charge is called...
- 5. The scientists that discovered the atom/ is the reason we call them "atoms" today
- 9. An element's name is determined by its ____ number.
- 10. The basic building block for all of matter
- 11. Elements become ions by gaining or losing...
- 14. The scientist that discovered the nucleus of the atom.
- 16. What state of matter something is in depends on its kinetic energy and ____ forces.
- 17. Electrons go around the nucleus in areas called...
- 19. Which state of matter has an undefined shape and a defined volume?
- 21. What is the charge of an electron?
Down
- 1. What is the charge of a proton?
- 2. Which state of matter has an undefined shape and an undefined volume?
- 6. What is defined as "anything that has mass and takes up space"?
- 7. What is defined as "the amount of matter an object has"?
- 8. The scientist that created the model of the atom most commonly used today
- 12. An ion with a positive charge is called...
- 13. What is the charge of a neutron?
- 15. The scientist that brought back the idea of the atom and came up with atomic theory
- 18. The scientists that rejected the idea of the atom
- 20. An atom or molecule with a charge is called...