Physics for Scientists and Engineers with Modern Physics
4th Edition
ISBN: 9780131495081
Author: Douglas C. Giancoli
Publisher: Addison-Wesley
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Chapter 39.4, Problem 1EE
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Suppose two electrons in an atom have quantum numbers n= 2 and L=1 . (a) How many states are possible for those two electrons? (Keep in mind that the electrons are indistinguishable.) (b) If the Pauli exclusion principle did not apply to the electrons, how many states would be possible?
Two electrons in the same atom have n = 3 and ℓ = 1. (a) List the quantum numbers for the possible states of the atom. (b) How many states would be possible if the exclusion principle did not apply to the atom?
Which of the following is not true of Bohrs atomic model?
The angular momentum of an electron in the allowed orbit is equal to an integral multiple of
h
2?
The Coulomb force between the nucleus and the electron maintains the electron in orbit.
Radiation is emitted when an electron orbits in the allowed orbit.
The electron in the orbit nearest to the nucleus has the lowest energy.
Chapter 39 Solutions
Physics for Scientists and Engineers with Modern Physics
Ch. 39.2 - Prob. 1AECh. 39.2 - Prob. 1BECh. 39.3 - Prob. 1CECh. 39.4 - Prob. 1DECh. 39.4 - Prob. 1EECh. 39.5 - Prob. 1FECh. 39.7 - Prob. 1GECh. 39 - Prob. 1QCh. 39 - Prob. 2QCh. 39 - Prob. 3Q
Ch. 39 - Prob. 4QCh. 39 - Prob. 5QCh. 39 - Prob. 6QCh. 39 - Prob. 7QCh. 39 - Prob. 8QCh. 39 - Prob. 9QCh. 39 - Prob. 10QCh. 39 - Prob. 11QCh. 39 - On what factors does the periodicity of the...Ch. 39 - Prob. 13QCh. 39 - Prob. 14QCh. 39 - Prob. 15QCh. 39 - Prob. 16QCh. 39 - Prob. 17QCh. 39 - Prob. 18QCh. 39 - Prob. 19QCh. 39 - Prob. 20QCh. 39 - Prob. 21QCh. 39 - Prob. 22QCh. 39 - Prob. 23QCh. 39 - Prob. 24QCh. 39 - Prob. 25QCh. 39 - Prob. 26QCh. 39 - Prob. 27QCh. 39 - Prob. 28QCh. 39 - Prob. 29QCh. 39 - Prob. 1PCh. 39 - Prob. 2PCh. 39 - Prob. 3PCh. 39 - Prob. 4PCh. 39 - Prob. 5PCh. 39 - Prob. 6PCh. 39 - Prob. 7PCh. 39 - Prob. 8PCh. 39 - Prob. 9PCh. 39 - Prob. 10PCh. 39 - Prob. 11PCh. 39 - Prob. 12PCh. 39 - Prob. 13PCh. 39 - Prob. 14PCh. 39 - Prob. 15PCh. 39 - Prob. 16PCh. 39 - Prob. 17PCh. 39 - Prob. 18PCh. 39 - Prob. 19PCh. 39 - Prob. 20PCh. 39 - Prob. 21PCh. 39 - Prob. 22PCh. 39 - Prob. 23PCh. 39 - Prob. 24PCh. 39 - Prob. 25PCh. 39 - Prob. 26PCh. 39 - Prob. 27PCh. 39 - Prob. 28PCh. 39 - Prob. 29PCh. 39 - Prob. 30PCh. 39 - Prob. 31PCh. 39 - Prob. 32PCh. 39 - Prob. 33PCh. 39 - Prob. 34PCh. 39 - Prob. 35PCh. 39 - Prob. 36PCh. 39 - Prob. 37PCh. 39 - Prob. 38PCh. 39 - Prob. 39PCh. 39 - Prob. 40PCh. 39 - Prob. 41PCh. 39 - Prob. 42PCh. 39 - Prob. 43PCh. 39 - Prob. 44PCh. 39 - Prob. 45PCh. 39 - Prob. 46PCh. 39 - Prob. 47PCh. 39 - Prob. 48PCh. 39 - Prob. 49PCh. 39 - Prob. 50PCh. 39 - Prob. 51PCh. 39 - Prob. 52PCh. 39 - Prob. 53PCh. 39 - Prob. 54PCh. 39 - Prob. 55PCh. 39 - Prob. 56PCh. 39 - Prob. 57PCh. 39 - Prob. 58PCh. 39 - Prob. 59PCh. 39 - Prob. 60PCh. 39 - Prob. 61GPCh. 39 - Prob. 62GPCh. 39 - Prob. 63GPCh. 39 - Prob. 64GPCh. 39 - Prob. 65GPCh. 39 - Prob. 66GPCh. 39 - Prob. 67GPCh. 39 - Prob. 68GPCh. 39 - Prob. 69GPCh. 39 - Prob. 70GPCh. 39 - Prob. 71GPCh. 39 - Prob. 72GPCh. 39 - Prob. 73GPCh. 39 - Prob. 74GPCh. 39 - Prob. 75GPCh. 39 - Prob. 76GPCh. 39 - Prob. 77GP
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- How do the allowed orbits for electrons in atoms differ from the allowed orbits for planets around the sun?arrow_forward(a) If one subshell of an atom has nine electrons in it, what is the minimum value of (b) What is the spectroscopic notation for this atom, if this subshell is part of the n = 3 shell?arrow_forward2.1. A neutral atom has the following electronic configuration: 1s? 2s² 2p° 3s² 3p³ (a). How many electrons are in the M shell? (b). How many protons are in the atomic nucleus? (c). To which group of the periodic table does this element belong?arrow_forward
- Which of the following is not true of BohrOs atomic model? O The electron in the orbit nearest to the nucleus has the lowest energy. O The Coulomb force between the nucleus and the electron maintains the electron in orbit. h O The angular momentum of an electron in the allowed orbit is equal to an integral multiple of O Radiation is emitted when an electron orbits in the allowed orbit.arrow_forwardB3arrow_forward1) An electron is sitting in the -9eV energy level of the atom shown here. Which of the following photons would raise the electron up to the -2.5eV energy level? 163 nm 191 nm 248 nm 216 nmarrow_forward
- . A general expression for the energy levels of one-electron atoms and ions is uk q°q² E, 2h'n? Here u is the reduced mass of the atom, given by u = m, m,/ (m, + m2), where m is the mass of the electron and m, is the mass of the nucleus; k, is the Coulomb constant; and q and 2 are the charges of the electron and the nucleus, respec- tively. The wavelength for the n= 3 to n = 2 transition of the hydrogen atom is 656.3 nm (visible red light). What are the wavelengths for this same transition in (a) positronium, which consists of an electron and a positron, and (b) singly ionized helium? Note: A positron is a positively charged electron.arrow_forwardQuestion 7 The wave function of an electron in a hydrogen - like atom is (r) = Cea where a = ao/Z with a being the Bohr radius and Z the atomic number. The nuclear charge is Ze and the atom contains only one electron. a) Compute the normalization constant. b) If the nuclear numbers are A = 173 and Z= 70, what is the probability that the electron is in the nucleus of radius R? Assume R = 1.2x4¹/³ fm 0.arrow_forward6arrow_forward
- An electron in the hydrogen atom is in the 4s state. (a) Find the orbital angular momentum of the electron (in units of h). (b) Find the energy of the electron (in eV). (c) Ignoring electron spin, find the total number of quantum states that have this same energy. (d) Make a table listing the uantum numbers n, I, and ms of each of the degenerate states. Indicate the spectroscopic label (e.g. 1s, 2s, etc) that would apply to each state.arrow_forwardIn the ground state of the Hydrogen atom the energy of the electron is E0 = -13.61 eV. What is the energy of the electron in the ground state of the He+ ion? Hints:The He+ ion is a Hydrogen-like structure, it has only one electron.How does the energy of the electron depend on the charge of the nucleus? Is this a bound state? Make sure, your answer has the correct sign. Incorrect. Tries 1/20 Previous Tries What is the energy of the electron in the ground state of the Li++ ion? Tries 0/20 The electron in the He+ ion is excited to the n = 2 principal state. What is the energy of the electron now? Tries 0/20 What is the energy of the electron in the Li++ ion in the n = 2 principal state? Tries 0/20 What is the energy of the electron in the Li++ ion in the n = 3 principal state? Tries 0/20 Take element Z = 83 from the periodic table. Ionize it 82 times so that there is only one electron left orbiting around the nucleus. What is the…arrow_forward(a) Using the Bohr’s model calculate the speed of the electron in a hydrogen atom in the n = 1, 2, and 3 levels. (b) Calculate the orbital period in each of these levels.arrow_forward
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