Chemistry 1 Concept 5 Electrons in Atoms Study Guide

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 ______