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Across 2. he said the behavior of electrons in quantized orbits was similar to the behavior of waves 6. characteristic used to identify a substance 8. this states that an electron occupies the lowest energy orbital first 10. data that deals with numbers 11. smallest part of an element 12. pure subsatance that can't be broken down 15. particle of light having zero mass and carries a quantum of energy 16. an ancient scientist who learned chemistry to make a profit and become wealthy 18. a single orbital can hold this many electrons 19. small specific packets of energy 20. he stated it is impossible to determine both the position and velocity of an electron at the same time 22. combination of the SI units 24. he said that electromagnetic radiation has a dual wave-particle nature 25. minimum quantity of energy that can be lost or gained by an atom 26. quantum number that describes the spin of the electron 27. closeness of a measurement to the accepted value 30. this rule reduces electron to electron repulsion 31. type of chemistry that studies how to design products so they don't harm the environment 33. logical approach to solving problems 34. man that discovered the nucleus of the atom 35. lowest energy state of an atom 36. energy must be added to move electrons up a level 39. describe mathematically the wave properties of electrons 40. smallest part of a compound 43. bending of a wave as it passes the edge of an object 45. type of relationship between energy of electrons and distance from nucleus 46. the P orbital has ___ orientations 48. something that has magnitude, size, or amount 49. any factor that changes in an experiment 50. he produced a model of the atom with electrons surrounding nucleus like planets around sun 51. discovered the charge of the electron

Down 1. waves overlap 3. form of energy that exhibits wave3like behavior as it travels through space 4. data that deals with descriptions 5. specific portion of matter in a given region of space that has been selected for study 7. magnetic quantum number describes the ___ of the orbital 9. when the s an p sublevels are fulled 13. an explanation of how phenomena occur and how dat or events are related 14. distance between corresponding points on adjacent waves 15. this states that no 2 electrons can have the same set of quantum number 17. the F orbital has ____ orientations 21. material that is used to remove moisture from the air 23. he developed an equation that treated electrons in atoms as waves 28. arrangement of electrons 29. he called nature's basic particle the atom 32. quantum number that is the main energy level 37. any substance that has a definite composition 38. testable statement 40. blend of two or more kinds of matter 41. energy given off as electrons move to lower levels 42. angular momentum quantum number describes the ____ or the orbital 44. broad generalization that explains a body of facts 47. the D orbital has ___ orientations