Across
- 7. the smallest subatomic particle
- 8. least reactive group
- 9. in a solution of salt water, it's the salt
- 11. model of the atom in which electrons have circular orbits
- 14. atoms of the same element with different numbers of neutrons
- 15. subatomic particle with no charge
- 16. nonmetals are located on the ____ side of the periodic table
- 17. most reactive group
- 21. units for measuring the mass of subatomic particles
- 23. scientist who made first periodic table
- 25. technique to separates mixtures based on boiling point
- 27. instrument that spins to separate mixtures
- 28. property of being able to be drawn into wires
- 29. vertical column on periodic table
Down
- 1. metalloid used in computer chips
- 2. scientist who performed the cathode ray experiment
- 3. describes a solution withe a low concentration
- 4. scientist who performed the gold foil experiment
- 5. ancient Greek who said atoms are indivisible
- 6. during a chemical reaction, atoms are ________
- 10. structure formed as a result of ionic bonding
- 12. the charge on a proton
- 13. number of valence electrons in oxygen
- 18. solution containing more than one metal
- 19. this happens to electrons in a covalent bond
- 20. one method for breaking apart compounds
- 22. horizontal row on periodic table
- 24. group 17
- 26. the physical property that determines if a balloon floats