Across
- 5. the vertical column on the periodic table
- 6. positively charged particles
- 7. first found the proton
- 10. this law states that mass can not be created or destroyed, just transferred
- 12. the rule that explains an atom need 8 valence electrons to be stable
- 15. unit that measures nuclear radiation exposure to humans
- 16. two atoms of the same element that makes a molecule
- 18. the name given to the combining ability of an atom when forming a compound
- 21. the horizontal rows on the periodic table
- 22. negatively charged particles
- 23. elements on the left side of the zig-zag line
- 24. the positive charged particle found in the nucleus of an atom
- 25. first found the electron
- 27. means "yeild" or "to produce"
- 29. name of group 18, the only stable group
- 30. another name for a homogeneous mixture
- 31. the large number in front of a compound
- 32. substance being dissolved
Down
- 1. a substance that conducts electricity when in a water solution
- 2. a suspension is this type of mixture
- 3. the small number to the right of an element
- 4. the sum of oxidation numbers in a compound
- 8. the process of an ionic compound releasing ions when dissolved in water
- 9. name for water
- 11. elements that make up a compound and the number of atoms
- 13. a chemical compound containing only 2 different elements
- 14. identifies the element
- 17. substance doing the dissolving
- 19. unit that measures nuclear radiation exposure to the environment
- 20. elements with 7 valence electrons
- 26. first published the periodic table in 1869
- 28. number of valence electrons for an atom to be stable