1. Taking the Bohr radius as a, =53 pm, the radius of Lit+ ion in its ground state, on the basis of Bohr's model, will be about (a) 53 pm (b) 27 pm (c) 18 pm (d) 13 pm

Q: When an electron drops from the M shell (n =4) to a vacancy in the K shell (n =1), the measured…

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Q: When an electron drops from the M shell (n = 3) to a vacancy in the K shell (n = 1), the measured…

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Q: A hydrogen atom is in a state with energy -1.51 eV. Using the Bohr model: (a) Calculate the angular…

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Q: What is the speed of the emitted electron if a hydrogen atom absorbs light of frequency 7.5 x 10^15…

A: Let speed of emmited electron is v  Now,  mvc = hf

Q: 24. The wavelength of the four Balmer series lines for hydrogen are found to be 410.3, 434.2, 486.3,…

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Q: 6. In the Stern-Gerlach experiment, after the electrons are emitted from their source, they are…

A: Stern-Gerlach experiment was the first proof of electrons having intrinsic angular momentum. The…

Q: Apply the Pauli exclusion principle to determine the number of electrons that could occupy the…

A: (a) The given electron, which is described by n=3,l=2,ml=−1. The spin quantum number is ms=±12 . So,…

Q: The energy of the n = 2 Bohr orbit is -30.6 eV for an unidentified ionized atom in which only one…

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Q: ngular momentum of an electron in the allowed orbit is equal to an integral multiple of  h 2?The…

A: Bohr's model of the atom was proposed by Bohr that came into existence with the modification of…

Q: • Which of the following postulates of the Bohr model led to the quantization of energy of the…

A: (1) The postulate of Bohr model that lead to the quantization of energy of Hydrogen atom is; The…

Q: Which model of the hydrogen atom, the Bohr model orthe quantum-mechanical model, predicts that the…

A: In the Bohr's model, the electrons are placed in definite circular orbits. The electron in the…

Q: What is the radius in nm of the electron orbit of a hydrogen atom for n = 4?  answer in (nm)

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Q: A photon is absorbed by a hydrogen atom in the ground state. If the electron is boosted from to the…

A: Initially electron is in ground state i.e. n = 1  Finally electron jumps to n = 6

Q: Suppose an electron, in the H atom, undergoes a transition from n_i=8 to n_f=2. Calculate the…

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Q: 25- The quantum number n is most closely associated with what property of the electron in a hydrogen…

A: As per guidelines,  question 25 is answered. For the reaming questions to get answered, post them…

Q: The shortest wavelength of the Lyman series of hydrogen is 91.13 nm. Find the three longest…

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Q: A hydrogen like atom has a nucleus with positive charge 3 e.Calculate the orbital Bohr radius of the…

A: The n=9  Positive charge =3e

Q: • An electron drops from the L shell to the K shell and gives off anX-ray with a wavelength of…

A: Equate the difference in energy levels to the energy of X-ray

Q: Which metal below has a threshold wavelength of 289 nm? (meaning that 289 nm liberates no electrons,…

A: Zinc has a threshold wavelength of 289 nm.

Q: If 13.6 eV energy is required to ionize the hydrogen atom, then energy required to remove an…

A: (1) Energy required to remove the electron from n=2 Enion=E0n2=13.6 eV22=3.4 eV Answer: option (c)

Q: 8.1 The Hydrogen Atom 25. The wave function is evaluated at rectangular coordinates ( x, y, z) = (2,…

A: Given:-                  The wave function is evaluated at rectangular coordinates (x, y, z) = (2,…

Q: A hydrogen atom has a radius of 0.05 nm with a position accuracy of 1.0%. Calculate the uncertainty…

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Q: A 12.5 eV electron beam is used to excite a gaseous hydrogen atom at room temperature. Determine the…

A: The relation between the energy and wavelength is  E =h cλ where, h is the Plank's constant, c is…

Q: 41 What is the probability that an electron in the ground state of the hydrogen atom will be found…

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Q: A hydrogen atom is in its second excited state, corresponding to n = 3. Find (a) the radius of the…

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Q: A single electron orbital lithium nucleus Z equals three in the n=4 state. the electron a photon of…

A: This question is based on Atoms topic.  When an electron moves from a higher energy orbit to a lower…

Q: Consider only transitions involving the n = 1 through n = 4 energy levels for the hydrogen atom (see…

A: Transitions from the n = 1 through n = 4 energy levels for the hydrogen atom is given: We need to…

Q: The energy of a Kalpha x-ray photon detected from a sample is 21.6 keV. The element being detected…

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Q: Problem 6:   Suppose an atom has an electron with magnetic quantum number ml = 2 What is the…

A: Suppose an atom has an electron with magnetic quantum number ml = 2 So orbital quantum number should…

Q: 5. If the Hydrogen atom has a quantum number of 3, solve for the energy and radius.

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Q: The wavelengths in the hydrogen spectrum with m = 1 form a series of spectral lines called the Lyman…

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Q: The gravitational attraction between electron and proton in a hydrogen atom is weaker than the…

A: Equate gravitational attraction between the proton and electron to the Coulombic attraction between…

Q: Consider a hydrogen atom in its 1s state (ground state) and assume (for simplicity) that the…

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Q: Determine the atomic number of an element if the wavelength of the K^ line of an unknown element is…

A: The wavelength of Kα line is,

Q: electron KaX-ray transition Photon Ze n=2 In Moseley's theory for emission of a Ka X-ray, an…

A: Please see the answer below.

Q: The Bohr model correctly predicts the main energy levels not only for atomic hydrogen but also for…

A: The energy of the nth orbit is

Q: An electron is excited from the n=1 ground state to the n=3 state in a hydrogen atom. Which of the…

A: Required : True or False

Q: Which of the following lists of quantum numbers for the hydrogen atom (if any) are NOT possible?…

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Q: The Balmer series in the hydrogen emission spectrum is formed by electron transitions fr What is the…

A: The Balmer series in the Hydrogen spectrum corresponds to the transitions from higher energy levels…

Q: What is the binding energy for an electron in the ground state in the following hydrogen-like atoms?…

A: When there is only one electron in an atom, it is considered to be hydrogen-like atoms.

Q: A hydrogen atom initially in the ground level absorbs a photon, which excites it to the n = 4 level.…

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Q: The energy levels available to the electron in the hydrogen atom (Z = 1) are described by the…

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The Bohr model

Students often get confused between Rutherford’s model and Bohr model of an atom. They interpret the postulates of both these models to be the same, which is incorrect. Rutherford’s model differs from Bohr’s model in the following ways: