Across
- 5. a table of the chemical elements arranged in order of atomic number, so that similar atoms appear together
- 7. subatomic particle with no charge
- 8. horizontal row with same number of electron shells
- 10. number of protons plus neutrons
- 12. subatomic particle with a negative charge
- 13. negatively charged ion
- 15. analytical technique that is used to measure the mass-to-charge ratio of ions
- 16. vertical row with same number of valence electrons
Down
- 1. hydrogen isotope with one proton and one neutron
- 2. outside of atom containing electrons
- 3. total distance from an atom's nucleus to the outermost orbital of electron
- 4. center of atom/protons and neutrons
- 6. positively charged ion
- 9. subatomic particle with a positive charge
- 11. smallest unit making up all matter
- 14. atoms with different number of neutrons