Chemistry Study Guide

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Across
  1. 3. At least two atoms or different elements combine
  2. 6. Number of proton/electron in element, (two words)
  3. 8. Letters defying the element
  4. 9. Result of two reactants
  5. 11. Put together to make something
  6. 12. Brittle, non ductile/malleable poor conductor
  7. 14. Energy absorbed cold
  8. 15. Creator of periodic table (two words)
  9. 17. Electrons in outermost orbital, (two words)
  10. 21. Energy released in heat
  11. 22. Rows of elements on periodic table
  12. 23. Space outside nucleus where electrons exist
  13. 25. Neutral charge in nucleus
Down
  1. 1. Many or few atoms combine into something new or more of it
  2. 2. Mass of molecule (two words)
  3. 4. Anything can change into the three states of matter
  4. 5. Positive charge in nucleus
  5. 7. Properties cross of metal and nonmetal conductive
  6. 10. Most elements are this
  7. 13. Smallest part of element
  8. 16. Positive charge center
  9. 18. Far right on table not reactive
  10. 19. Substance naturally formed or manmade, building block
  11. 20. Move around nucleus negative charge
  12. 22. Reaction occurs when layer of metal is bonded to surface of another substance usually metal
  13. 24. Columns of elements up and down on periodic table