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Across 3. symbolized by m, indicates the orientation of an orbital around the nucleus 6. no two electrons in the same atom can have the same set of four quantum numbers 8. specify the properties of atomic orbitals and the properties of electrons in orbitals 10. outer main energy level fully occupied 12. describes mathmatically the wave properties of electrons and other very small particles 17. group 18 elements 18. orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron, and all electrons in singly occupied orbitals must have the same spin 19. state in which an atom has a higher potential energy that it has in its ground state 20. particle of electromagnetic radiation having zero mass and carrying a quantumof energy 22. sybolized by l, indicates the shape of the orbital 23. refers to the emmission of electrons from a metal when light shines on the metal 24. emission of a continuous range of frequencies of electromagnetic radiation 25. an electron occupies the lowest-energy orbital that can receive it

Down 1. minimum quanitity of energy that can be lost or gained by an atom 2. states that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle. 4. all forms of electromagnetic radiation 5. form of energy that exhibits wave like behavior as it travels through space 7. symbolized by n, indicates the main energy level occupied by the electron 9. has only two possible values which only indicate the two fundamental spin states of an electron in an orbital 11. series of specific wavelengths of emitted light created when the visible portion of light from excited atoms is shined through a prism 13. distance between corresponding waves 14. electrons that are not in the highest occupied energy level 15. electron containing man energy level with the highest principle quantum number 16. defined as the number of waves that pass at a given point in a specific time 21. the lowest energy state of an atom