Physics for Scientists and Engineers With Modern Physics
9th Edition
ISBN: 9781133953982
Author: SERWAY, Raymond A./
Publisher: Cengage Learning
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Chapter 42, Problem 7OQ
To determine
The option which related to the principle for the periodic table.
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Question 2. Let us consider a hypothetical Atom with the following
list of energy levels:
E1 = 1.5 eV
E2 = 3.5 eV
E3 = 4.8 eV
E4 = 5.6 eV
a) Compute the energy of ALL the spectral lines in the
ABSORPTION SPECTRUM and list the corresponding "colors"
b) Compute the energy of ALL the spectral lines in the EMISSION
SPECTRUM and list the corresponding "colors"
Wavelength Frequency Photon energy
(nm)
(THz)
380-450
670-790
450-485
620-670
cyan
485-500
600-620
green
500-565
530-600
yellow
565-590
510-530
orange 590-625
480-510
red
625-750
400-480
Color
violet
blue
(eV)
2.75-3.26
2.56-2.75
2.48-2.56
2.19-2.48
2.10-2.19
1.98-2.10
1.65-1.98
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.
What is the maximum number of electrons in an atom that can have the following quantum numbers?
n = 3, l = 2, ms = -1/2
Chapter 42 Solutions
Physics for Scientists and Engineers With Modern Physics
Ch. 42.3 - Prob. 42.1QQCh. 42.3 - Prob. 42.2QQCh. 42.4 - Prob. 42.3QQCh. 42.4 - Prob. 42.4QQCh. 42.8 - Prob. 42.5QQCh. 42 - Prob. 1OQCh. 42 - Prob. 2OQCh. 42 - Prob. 3OQCh. 42 - Prob. 4OQCh. 42 - Prob. 5OQ
Ch. 42 - Prob. 6OQCh. 42 - Prob. 7OQCh. 42 - Prob. 8OQCh. 42 - Prob. 9OQCh. 42 - Prob. 10OQCh. 42 - Prob. 11OQCh. 42 - Prob. 12OQCh. 42 - Prob. 13OQCh. 42 - Prob. 14OQCh. 42 - Prob. 15OQCh. 42 - Prob. 1CQCh. 42 - Prob. 2CQCh. 42 - Prob. 3CQCh. 42 - Prob. 4CQCh. 42 - Prob. 5CQCh. 42 - Prob. 6CQCh. 42 - Prob. 7CQCh. 42 - Prob. 8CQCh. 42 - Prob. 9CQCh. 42 - Prob. 10CQCh. 42 - Prob. 11CQCh. 42 - Prob. 12CQCh. 42 - Prob. 1PCh. 42 - Prob. 2PCh. 42 - Prob. 3PCh. 42 - Prob. 4PCh. 42 - Prob. 5PCh. 42 - Prob. 6PCh. 42 - Prob. 7PCh. 42 - Prob. 8PCh. 42 - Prob. 9PCh. 42 - Prob. 10PCh. 42 - Prob. 11PCh. 42 - Prob. 12PCh. 42 - Prob. 13PCh. 42 - Prob. 14PCh. 42 - Prob. 15PCh. 42 - Prob. 16PCh. 42 - Prob. 17PCh. 42 - Prob. 18PCh. 42 - Prob. 19PCh. 42 - Prob. 20PCh. 42 - Prob. 21PCh. 42 - Prob. 23PCh. 42 - Prob. 24PCh. 42 - Prob. 25PCh. 42 - Prob. 26PCh. 42 - Prob. 27PCh. 42 - Prob. 28PCh. 42 - Prob. 29PCh. 42 - Prob. 30PCh. 42 - Prob. 31PCh. 42 - Prob. 32PCh. 42 - Prob. 33PCh. 42 - Prob. 34PCh. 42 - Prob. 35PCh. 42 - Prob. 36PCh. 42 - Prob. 37PCh. 42 - Prob. 38PCh. 42 - Prob. 39PCh. 42 - Prob. 40PCh. 42 - Prob. 41PCh. 42 - Prob. 43PCh. 42 - Prob. 44PCh. 42 - Prob. 45PCh. 42 - Prob. 46PCh. 42 - Prob. 47PCh. 42 - Prob. 48PCh. 42 - Prob. 49PCh. 42 - Prob. 50PCh. 42 - Prob. 51PCh. 42 - Prob. 52PCh. 42 - Prob. 53PCh. 42 - Prob. 54PCh. 42 - Prob. 55PCh. 42 - Prob. 56PCh. 42 - Prob. 57PCh. 42 - Prob. 58PCh. 42 - Prob. 59PCh. 42 - Prob. 60PCh. 42 - Prob. 61PCh. 42 - Prob. 62PCh. 42 - Prob. 63PCh. 42 - Prob. 64PCh. 42 - Prob. 65APCh. 42 - Prob. 66APCh. 42 - Prob. 67APCh. 42 - Prob. 68APCh. 42 - Prob. 69APCh. 42 - Prob. 70APCh. 42 - Prob. 71APCh. 42 - Prob. 72APCh. 42 - Prob. 73APCh. 42 - Prob. 74APCh. 42 - Prob. 75APCh. 42 - Prob. 76APCh. 42 - Prob. 77APCh. 42 - Prob. 78APCh. 42 - Prob. 79APCh. 42 - Prob. 80APCh. 42 - Prob. 81APCh. 42 - Prob. 82APCh. 42 - Prob. 83APCh. 42 - Prob. 84APCh. 42 - Prob. 85APCh. 42 - Prob. 86APCh. 42 - Prob. 87APCh. 42 - Prob. 88APCh. 42 - Prob. 89CPCh. 42 - Prob. 90CPCh. 42 - Prob. 91CP
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- Which of the following notations are allowed (that is, which violate none of the rules regarding values of quantum numbers)? 1s1 1d3 4s2 3p7 6h20arrow_forwardWhich of the following spectroscopic notations are not allowed? (a) 5s1(b) 1d1(c) 4s3(d) 3p7(e) 5g15. State which rule is violated for each that is not allowed.arrow_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_forward
- A general expression for the energy levels of oneelectron atoms and ions is Here µ is the reduced mass of the atom, given by µ = m1m2/(m1 +m2m2), where m1 is the mass of the electron and m2 is the mass of the nucleus; ke is the Coulomb constant; and q1 and q2 are the charges of the electron and the nucleus, respectively. 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_forwardAn 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_forwardan electron in a hydrogen atom is in a state with principal quantum number n = 3. a) what is the largest orbital angular momentum it can have? b) which values of the z - component of the angular momentum are allowed with this total momentum? (leave answers in units of h bar) c) the electron transitions to the n = 2 energy level, emitting a photon. what is that photon's length?arrow_forward
- Which one of the following statements is FALSE?de Broglie's contribution to the Bohr model was that an electron's orbit a)must have a circumference related to the particle's wavelength. b)must have an angular momentum that equals mvr. c)must allow the electron to act as a standing wave. d)can be explained by treating electrons as particle waves.arrow_forwardQuestion A1 Give the term used in condensed matter physics for each of the following: a) The centre of the Brillouin zone b) A method for generating a neutron beam by bombarding a heavy metal target with protons c) The group of atoms associated with each lattice point in a crystal structure d) The Fourier transform of the lattice of a crystal e) A vibrational mode whose frequency tends to zero as the wavevector approaches zero f) A model of electronic structure in which electrons move in a weak, periodic potential and do not interact with each other by the Coulomb forcearrow_forwardhe Bohr’s model shows that electronic energy of hydrogen atom is given by the formula: En = -2.18 x 10–18 J (1/n2), where n is a quantum number 1, 2, 3,... 2.18 x 10–18 J the Bohr’s constant. (a) Calculate the electronic energy when n = 2 and n = 5. (b) If an electron jumps from the energy leveln = 5 to n = 2, what is the change in energy for the electron? Does the electron gain or lose energy? (c)If the energy is absorbed or given off in the form of light photon, what is the wavelength of the photon? (Planck constant, h = 6.63 x 10–34 J.s; speed of light, c = 3.00 x 108 m/s)arrow_forward
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