Mega Chemistry Crossword

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Across
  1. 1. type of element that is good conductor of heat and electricity
  2. 4. amount of energy required to move an electron from one energy level to another
  3. 5. total kinetic energy of all particles that make up matter
  4. 12. one or two letters representing an element
  5. 16. positively charged subatomic particles
  6. 17. energy that matter has because of its motion
  7. 18. electrons in the outermost energy shell
  8. 19. property of electrons that may be thought of as clockwise orientation
  9. 20. atoms that have the same number of protons but different number of neutrons
Down
  1. 2. simplest form of matter that has a characteristic set of properties
  2. 3. subatomic particles with no charge
  3. 6. vertical column of elements
  4. 7. element that tends to be a poor conductor of heat and electricity
  5. 8. anything that has mass and takes up space
  6. 9. negatively charges subatomic particles
  7. 10. fundamental building blocks of matter
  8. 11. total number of protons plus neutrons in an atom
  9. 13. capacity to move
  10. 14. an element that tends to have properties that are similar to those of metals and nonmetals
  11. 15. horizontal row of elements in the periodic table