Chemistry Crossword Puzzels

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Across
  1. 2. describing without numbers
  2. 5. ______have the same number of electrons and protons
  3. 11. a region in space in which there is high probability of finding an e-
  4. 12. ____are atoms that have an unequal number of electrons and protons
  5. 14. Plum pudding model
  6. 17. they are the most reactive metals, always bonded with another elements
  7. 21. he was known as the father of modern chemistry
  8. 22. they are horizontal; rows of elements is called______
  9. 24. table that organizes the elements is particular way
  10. 25. have properties of both metal and nonmetal
  11. 26. making orange juice is ______ change
  12. 27. the energy level are like the ____ of a ladder but not equally spaced
  13. 30. shape of dumbbell, holds 2 electrons in each orbital
Down
  1. 1. a part or aspect of something abstract, especially one that is essential or characteristic
  2. 3. refers to how many protons an atoms of that elements has
  3. 4. Longest wavelength, 700nm
  4. 6. average mass of all the atomic masses of the isotopes of that atom
  5. 7. columns of elements is called______
  6. 8. using numbers to describe
  7. 9. poor conductors of heat and electricity
  8. 10. elements in this family are fluorine, chlorine, bromine, iodine and astatine
  9. 13. they are colorless gases that are extremely un-reactive
  10. 15. levels S,P,D,F are the ______
  11. 16. he discover neturons in 1932
  12. 18. Baking a cake is _____ change
  13. 19. shortest wavelength 400nm
  14. 20. e- in the outer energy level of an atom
  15. 23. good conductors of head and electricity
  16. 28. are bundles of light energy that emitted by e- as they go from higher energy level to lower levels
  17. 29. the amount of energy required to move an e- from one energy level to another