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Chemistry 1 Concept 4 “Electrons in Atoms” Study Guide Name: ______________________________ Block: _________ 1. Give the elements that have the following electron configurations: 1s22s22p63s23p4 _______________ 1s22s22p63s23p64s23d104p3 ____________ 2. Specific wavelengths of light seen through a prism that are made when high voltage current is passed through a tube of hydrogen gas at low pressure is _________________ 3. The energy of a photon is related to its ______________ 4. Give the number of orbitals for each sublevel: s _____, p ______, d ______, f ______ 5. What is the wavelength of microwaves of 4.0 x 109 Hz frequency? _______________ 6. An electron for which n = 4 has more _______ than an electron for which n = 2. 7. What is the frequency of a photon with an energy of 1.75 x 10 -19 J________________ 8. The number of sublevels within each energy level of an atom is equal to the value of the ________________________________________________________ 9. What is the frequency of infrared light of 1.0 x 10 -4 J___________________ 10. The main energy levels of an atom are indicated by the ________________________ 11. Describe the Schrödinger wave equation ___________________________________ 12. Which model of the atom explains the orbitals of electrons as waves? ____________ 13. What is the relationship between frequency and wavelength? ___________________ 14. Describe the orbital shapes of each orbital: s________________________________, p___________________________, d _______________________, f ________________ 15. Why do both copper and chromium break the pattern in the order of filling the 3d and 4s orbitals? __________________________________________________________ 16. What is the Aufbau principle? ___________________________________________ and in what order are the obitals filled? _______________________________________ 17. The quantum number that indicates the position of an orbital about the three axes in space is the ___________________________________ 18. The spin quantum number indicates that the number of possible spin states for an electron in an orbital is __________ 19. The angular momentum quantum number indicates the ________________________ 20. What is the energy of a photon whose frequency is 5.0 x 1020 Hz? ______________ 21. What state are electrons in that have the lowest possible energy ________________ 22. According to the particle model of light, certain kinds of light cannot eject electrons form metals because ___________________________________________________ 23. Describe the Heisenberg uncertainty principle a) _____________________________ b) _________________________________ c) __________________________________ 24. A quantum of electromagnetic energy is called a _____________________________ 25. A line spectrum is produced when an electron moves from one energy level to _____ 26. Bohr’s theory helped explain why ________________________________________ 27. Because excited H atoms always produce the same line-emission spectrum, scientists concluded that H released photons of _________________________________________ 28. What does the wave model of light explain? ________________________________ 29. Draw a wave and label the wavelength, describe the frequency. 30. What is Hund’s rule? __________________________________________________ 31. What is the de Broglie theory? __________________________________________ 32. The Pauli Exclusion Principle states ______________________________________ 33. The spin quantum number of an electron can be thought of as describing _________