Using the Bohr formula for the radius of an electron orbit,estimate the average distance from the nucleus for anelectron in the innermost n=1 orbit of a uranium atom(z=92)Approximately how much energy would berequired to remove this innermost electron?

Q: Consider only the Lyman, Balmer and Paschen series for the energy diagram provided for an unknown…

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Q: By depending on Bohr model, if the radius of the orbit is 1x 10*(-6) meters, then what is the energy…

A: Radius of orbit= 1x 10*(-6) meters

Q: Using the Bohr model, calculate the electric current created by the electron when the H-atom is in…

A: Let v be the velocity of the electron Number of revolutions per unit time = f = 2πa0/v

Q: Why we find out the ‘e/m’ ratio of electron then separately measure ‘e’ and ‘m’?

A: We find out 'e/m' ratio of electron then we separately measure 'e' and 'm' because , it is easy to…

Q: Determine the probability of finding the electron at any distance farther than 2.13a, from the…

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Q: The wavelenghts of the Lyman series for hydrogen are given by

A: Rydberg equation for hydrogen is 1λ=RH1nf2-1ni2

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

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Q: One of the lines in the emission spectrum of the hydrogen atom has a wavelength of λ = 121.6 nm.…

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Q: When an electron of an excited hydrogen atom descends, from an initial energy level (ni) to a lower…

A: Given: wavelength of emission spectrum λ=2167 nm

Q: In atoms there is a finite, though very small, probability that, at some instant, an orbital…

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Q: In the Bohr model of the atom, we assume that nanoscale particles behave according to classical…

A: mass = 9.11 *10-31 kg distance (d) = 6.4 *10-11 m Force (F) = 5.63 *10-8 NUsing Coulomb force =…

Q: One of the lines in the emission spectrum of the hydrogen atom has a wavelength of λ = 102.6 nm.…

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Q: The wavelength of an electron revolving in the 3rd orbit of Be3+ is 'x' . The radius of first Bohr…

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Q: Show that the following 4 lines in the Lyman series can be predicted: 91.127, 97.202, 102.52, and…

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Q: What is the energy of a Bohr hydrogen atom with a 5.18 nm diameter?

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Q: Explain how the angular momentum of the electron at n = 4 differs in the Bohr and Quantum Model…

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Q: .55 The radial probability density for the ground state of the hydrogen atom is a maximum whenr = a,…

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Q: How may the energy levels of an atom be detected directly, rather than by spectral analysis?

A: Given: Asked how may the energy levels of an atom be detected directly, rather than by spectral…

Q: Do the Balmer and Lyman series overlap? To answer this, calculate the shortest-wavelength Balmer…

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Q: The orbital radii of a hydrogen-like atom is given by the equation n²h? Zm,k,e? What is the radius…

A: Write the given expression for orbital radii

Q: Derive the Bohr’s quantisation condition for angular momentum of the orbitting of electron in…

A: According to the Bohr's second postulate, an electron's angular momentum can only have values that…

Q: In the ground state of the hydrogen atom, the electron has a total energy of -13.6 eV.What are (a)…

A: a) The required kinetic energy for hydrogen (Z=1) is,

Q: In a hydrogen atom, what is the principal quantum number of the electron orbit with a radius closest…

A: The expression of the radius of the nucleus of the hydrogen atom,

Q: Find the longest and shortest wavelengths in the Lyman and Paschen series for hydrogen. In what…

A: The  relation between wavelength for transition from one state to other is given by- 1λ=RH1n12-1n22…

Q: One of the lines in the emission spectrum of the hydrogen atom has a wavelength of λ = 486.4 nm.…

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Q: The wavefunction for an electron in the Hydrogen atom is provided in figure 1, where B is a…

A: Given wavefunction of the hydrogen atom, Ψ = B r2e-r3ao sinθ cosθ e-iϕ

Q: Suppose that the uncertainty of position of an electron is equal to the radius of the n = 1 Bohr…

A: The expression for Heisenberg uncertainty principle is ΔxΔp≥ℏ2 For n=1 the uncertainty in the…

Q: The graph below shows the variation with distance r from the nucleus of the square of the wave…

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Q: What is the probability of the electron in the 1s state of the hydrogen atom being at a radius…

A: Probability of finding the electron in 1 s state of the hydrogen atom having radius greater than the…

Q: When an electron of an excited hydrogen atom descends, from an initial energy level (ni) to a lower…

A: Given: wavelength of hydrogen emission spectrum, λ = 434.3 nm To determine: value of ninitial and…

Q: In a hydrogen atom, what is the principal quantum number of the electron orbit with a radius closest…

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Q: Show that the radius of the orbit in hydrogen atom varies as n2, where n is the principal quantum…

A: To prove:         The radius of the orbit in hydrogen atom varies as n2.

Q: If an atom has an electron in the n = 4 state with m = 3, how many possible values of 1 are there?

A: Lets first see all the four quantum numbers to understand the question n: the principal quantum…

Q: When an electron of an excited hydrogen atom descends, from an initial energy level (ni) to a lower…

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Q: As the Earth moves around the Sun, its orbits are quantized. (a) Follow the steps of Bohr’s analysis…

A: By Bohr’s quantization of orbits, if the orbit of the Earth around the sun is circular, then the…

Q: Find the electron velocity in the Hydrogen atom if its total energy equals (-13.6 ev).

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Q: The radius of the innermost electron orbit of a hydrogen atom is  5.3×10-11 m. What are the radii of…

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Q: If an electron is revolving in its Bohr orbit having Bohr radius of 0.529 A, then what is the radius…

A: Radius of Bohr orbit is given by, rn=r∘n2Z   .... 1 where r∘ is Bohr radius           n is orbit…

Q: From the figure find the shortest wavelength present in the Balmer series of hydrogen, I f R=1.097 x…

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Q: In the X-ray spectrum of the element with Z= 43, a Ka peak is observed at a wavelength of 6.718 x…

A: According to Bohr's Model the wavelength of the spectral line for the transition from n2 shell to n1…

Q: In a ground state atom of P how many electrons total will have the quantum number ℓ = 0?

A: Answer The electronic configuration of a neutral atom of Phosphorus is given by P: 1s2 2s2 2p6 3s2…

Q: 4 and 5. (Hint u

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Q: From the figure find the shortest wavelength present in the Balmer series of hydrogen, I f R =1.097…

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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: