Across
- 1. of an atom number of protons minus electrons
- 4. spectroscopy used to measure mass to ratio
- 5. in the periodic table columns on periodic table
- 8. table of elements
- 9. two or more types of atoms in the periodic table that have the same atomic number
- 11. Substance that cannot be chemically broken
- 13. attract shared electrons
- 14. energy amount of energy to remove bound electron
- 16. membrane-bound organelle
- 18. Stable isotope of hydrogen
- 19. positive charged ion
Down
- 2. radius measurement size of its atom
- 3. tendency for an atom
- 4. number total number of protons and neutrons in a nucleus
- 6. cloud system of electron surrounding the nucleus of an atom
- 7. horizontal rows on periodic table
- 8. particle with positive charge
- 10. Particle with negative charge
- 12. negative charged ion
- 15. particle with no charge
- 17. composed of two or more separate elements