If an H atom with a 1s configuration is placed in a magnetic field, the electron spin degeneracy will be removed and the number of states with different energies will be A. One B. Two C. Three D. None...
If an H atom with a 1s configuration is placed in a magnetic field, the electron spin degeneracy will be removed and the number of states with different energies will be A. One B. Two C. Three D. None of the above
Homework Answers
Answer is B : Two
The term degeneracy refers the set of state described by different quantum numbers but having the same energy. The orbital degeneracy of any hydrogen atom energy level depends on the principal quantum number n,
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If an H atom with a 1s configuration is placed in a magnetic field, the electron spin degeneracy will be removed and the number of states with different energies will be A. One B. Two C. Three D. None...
(a) If an atom with one unpaired electron spin is placed in a magnetic field B,...
(a) If an atom with one unpaired electron spin is placed in a magnetic field B, then there are two energy levels, corresponding to the two values of the quantum number ms. Calculate the energy difference AU between the states. (b) If the atom is irradiated it will absorb energy if the frequency v=4. This is phenomenon is called electron spin resonance. Calculate the frequency if B, is 27. In what part of the electromagnetic spectrum is this frequency?
C) 5 D) 14 E) none of the above Which element is represented by the electron...
C) 5 D) 14 E) none of the above Which element is represented by the electron configuration 18282p? A) B) 0 C) Be D) He E) none of the above 46. What is the electron configuration for Ga? A) 1822p%3s 3p%4s 4d104p! B) 1s2 s2p 3s 3p 3d104824p 1s 2s 2p 3s 3p64523d104p! D) 152s 2p 3s 3p%3d104s24p! E) none of the above 47. What is the element in which at least one electron is in the d-orbital? A) Ar...
7. Cirele the letter of each statement that is true of quantum numbers for electrons within an atom. a. The principal quantum number can have any value from 0 to 7, b. The spin quantum number can...
7. Cirele the letter of each statement that is true of quantum numbers for electrons within an atom. a. The principal quantum number can have any value from 0 to 7, b. The spin quantum number can have only 1 of 2 possible values. c. The magnetic quantum number depends on the spin quantum number d. All quantum numbers must have different values for a single electron. e. Each electron has a unique set of values for the 4 quantum...
4. When an external magnetic field B is applied, a "spin-1" ion has 3 magnetic states...
4. When an external magnetic field B is applied, a "spin-1" ion has 3 magnetic states with energies given Em=aBm, m=-1,0,1, where a is a constant of order a few times the Bohr magneton up = en/(2m). (Note: the notation here is quite different from that of Kittel & Kroemer who use "m" for the elementary magnetic moment which we have denoted a. In our terminology, m=ms is an integer quantum number: m=-1 labels the "spin down" state, m=0 labels...
why total orbitals are 6 ?? and please answer the number of orbitals of self test...
why total orbitals are 6 ?? and please answer the number of
orbitals of self test 9c.3
No Brief illustration 90.3 Spin-orbit coupiny The unpaired electron in the ground state of an alkali metal atom has l=0, so j=1. Because the orbital angular momen- tum is zero in this state, the spin-orbit coupling energy is zero (as is confirmed by settingj=s and 1=0 in eqn 9C.4). When the electron is excited to an orbital with I=1, it has orbital angular...
PLEASE COMPLETE B) and stay tuned for my following 2 questions where I will ask part c) and d). P...
PLEASE COMPLETE B) and stay tuned for my
following 2 questions where I will ask part c) and d). Part a) has
already been posted.
The lowest energy state of a hydrogen-like atom has total angular momentum J-1/2 (from the l-O orbital angular momentum and the electron spin s 1/2). Furthermore, the nucleus also has a spin, conventionally labeled I (for hydrogen, this is the proton spin, 1 1/2). This spin leads to an additional degeneracy. For example, in the...
asap 8) In the Bohr model of the atom, A) electrons travel in circular paths called...
asap
8) In the Bohr model of the atom, A) electrons travel in circular paths called orbits B) electrons can have any energy C) electron energies are quantized D) electron paths are controlled by probability E) both A and C 9) The uncertainty principle states that_ A) matter and energy are really the same thing B) it is impossible to know anything with certainty C) it is impossible to know the exact position and momentum of an election D) there...
Problem 7.49 A hydrogen atom is placed in a uniform magnetic field Bo Bo (the Hamiltonian can be ...
Problem 7.49
Problem 7.49 A hydrogen atom is placed in a uniform magnetic field Bo Bo (the Hamiltonian can be written as in Equation 4.230). Use the Feynman-Hellman theorem (Problem 7.38) to show that a En (7.114) where the electron's magnetic dipole moment10 (orbital plus spin) is Yo l-mechanical + γ S . μ The mechanical angular momentum is defined in Equation 4.231 a volume V and at 0 K (when they're all in the ground state) is41 Note: From...
At a particular instant, an electron moves eastward at speed V in a uniform magnetic field...
At a particular instant, an electron moves eastward at speed V in a uniform magnetic field that is directed straight upward. The magnetic force that acts on it is? A. zero. B. directed upward. C. directed to the south. D. none of the above. Two long parallel wires are placed side-by-side on a horizontal table. If the wires carry current in same directions.... A. the wires repel each other. B. one wire is lifted slightly as the other is forced...
For the hydrogen atom: a) How many different 3d states are there? b) What physical property of pr...
For the hydrogen atom: a) How many different 3d states are there? b) What physical property of properties (as opposed to quantum numbers) distinguishes them, and what different values may this property or these properties assume? c) Identify all the different total angular momentum states (sets of {j, mj}) that a 3d electron can occupy. d) An external magnetic field much stronger than the atom's internal, self-generated magnetic fields is applied to the atom. Into how many distinct energy levels...
(a) If an atom with one unpaired electron spin is placed in a magnetic field B, then there are two energy levels, corresponding to the two values of the quantum number ms. Calculate the energy difference AU between the states. (b) If the atom is irradiated it will absorb energy if the frequency v=4. This is phenomenon is called electron spin resonance. Calculate the frequency if B, is 27. In what part of the electromagnetic spectrum is this frequency?
C) 5 D) 14 E) none of the above Which element is represented by the electron configuration 18282p? A) B) 0 C) Be D) He E) none of the above 46. What is the electron configuration for Ga? A) 1822p%3s 3p%4s 4d104p! B) 1s2 s2p 3s 3p 3d104824p 1s 2s 2p 3s 3p64523d104p! D) 152s 2p 3s 3p%3d104s24p! E) none of the above 47. What is the element in which at least one electron is in the d-orbital? A) Ar...
7. Cirele the letter of each statement that is true of quantum numbers for electrons within an atom. a. The principal quantum number can have any value from 0 to 7, b. The spin quantum number can have only 1 of 2 possible values. c. The magnetic quantum number depends on the spin quantum number d. All quantum numbers must have different values for a single electron. e. Each electron has a unique set of values for the 4 quantum...
4. When an external magnetic field B is applied, a "spin-1" ion has 3 magnetic states with energies given Em=aBm, m=-1,0,1, where a is a constant of order a few times the Bohr magneton up = en/(2m). (Note: the notation here is quite different from that of Kittel & Kroemer who use "m" for the elementary magnetic moment which we have denoted a. In our terminology, m=ms is an integer quantum number: m=-1 labels the "spin down" state, m=0 labels...
why total orbitals are 6 ?? and please answer the number of
orbitals of self test 9c.3
No Brief illustration 90.3 Spin-orbit coupiny The unpaired electron in the ground state of an alkali metal atom has l=0, so j=1. Because the orbital angular momen- tum is zero in this state, the spin-orbit coupling energy is zero (as is confirmed by settingj=s and 1=0 in eqn 9C.4). When the electron is excited to an orbital with I=1, it has orbital angular...
PLEASE COMPLETE B) and stay tuned for my
following 2 questions where I will ask part c) and d). Part a) has
already been posted.
The lowest energy state of a hydrogen-like atom has total angular momentum J-1/2 (from the l-O orbital angular momentum and the electron spin s 1/2). Furthermore, the nucleus also has a spin, conventionally labeled I (for hydrogen, this is the proton spin, 1 1/2). This spin leads to an additional degeneracy. For example, in the...
asap
8) In the Bohr model of the atom, A) electrons travel in circular paths called orbits B) electrons can have any energy C) electron energies are quantized D) electron paths are controlled by probability E) both A and C 9) The uncertainty principle states that_ A) matter and energy are really the same thing B) it is impossible to know anything with certainty C) it is impossible to know the exact position and momentum of an election D) there...
Problem 7.49
Problem 7.49 A hydrogen atom is placed in a uniform magnetic field Bo Bo (the Hamiltonian can be written as in Equation 4.230). Use the Feynman-Hellman theorem (Problem 7.38) to show that a En (7.114) where the electron's magnetic dipole moment10 (orbital plus spin) is Yo l-mechanical + γ S . μ The mechanical angular momentum is defined in Equation 4.231 a volume V and at 0 K (when they're all in the ground state) is41 Note: From...
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