Across
- 8. a mixture where individual particles can't be distinguished.
- 11. elements that do not exist in nature as single atoms but as two atoms bonded together
- 12. a device used to measure the energy absorbed or released as heat in a chemical reaction.
- 13. who created the first periodic table
- 14. substance that is dissolved
- 15. a set of four variables used to describe the location of electrons within an atom
- 17. microscopic particles are dispersed evenly in another substance
- 18. substance that does the dissolving
- 19. a substance that speeds up a chemical reaction without itself undergoing any chemical change.
- 20. occurs when the reaction rates of a reversible reaction for the forward and reverse reactions are equal.
- 21. discovered the proton
Down
- 1. a mixture that is not uniform
- 2. number defined by the amount of protons in the nucleus
- 3. a standard unit that stands for 6.02 x 10^23
- 4. rule that states atoms will gain, lose, or share valence electrons to attain 8 valence electrons
- 5. the mass of an atom given in amu
- 6. a substance that increases the concentration of hydrogen ions in an aqueous solution.
- 7. solution is boiled to separate liquids
- 9. length of time it takes for half of the radioactive atoms of a specific radioactive isotope to decay
- 10. name of elements in the column all the way to the right on the periodic table
- 16. stated the uncertainty principle