CHEMISTRY

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Across
  1. 3. building blocks of the nucleon
  2. 5. quantum no. that describes the orientation of the electron wave in space
  3. 6. anything that has mass and occupies volume
  4. 9. equal to the number of energy level
  5. 10. poor conductors of heat and electricity
  6. 11. an operator with the least number of significant figures
  7. 12. equal to the mass of substance per unit volume
  8. 14. 2 phases or more mixture
  9. 17. negative proton
  10. 18. the said that the electron orbit is circular
  11. 19. quantum no. that describes the shape of the electron wave
  12. 20. distance of the nucleus from the last energy level
  13. 22. positive electron
  14. 23. 10 x f.u.
  15. 24. equal to the number of electron in the outermost shell
  16. 25. smallest estimated reading/value
  17. 27. measure of the gravitational pull of the earth on a body
Down
  1. 1. can be drawn into wire
  2. 2. particle responsible for chemical reactions
  3. 4. can be hammered
  4. 5. substance consisting of 2 or more components
  5. 6. he created the modern periodic table
  6. 7. they are shiny, luster, and sheen
  7. 8. 3 elements in a group with the same properties
  8. 13. 1/1000000 x f.u.
  9. 15. smallest region of space
  10. 16. amount of matter in a body
  11. 20. the lowest possible temperature
  12. 21. consists of positively charged nucleus at the center; surrounded by negatively charged particle
  13. 25. has mass and moves in a simple manner
  14. 26. a particle inside a nucleus