A singly ionized helium atom has an electron in the n = 4 state. What is the kinetic energy of the electron?

Q: Zinc has a work function of 4.3 eV.a. What is the longest wavelength of light that will release an…

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Q: What is the second level energy of an electron (m=9.11x10-31kg) that is confined to a space of…

A: The second level energy of the electron. given, mass of electron(m)=9.1×10-31 kg Energy level(n)= 2…

Q: The total energy of an electron in the first excited state of the hydrogen atom is about -3.4 eV.…

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Q: An electron is in a d subshell. What are the possible values of it magnetic quantum number? O a. -3…

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Q: What's the energy of the photon that is emitted by the hydrogen atom when it makes a transition from…

A: Given data: The principal quantum number corresponding to the initial energy state is, ni= 4 The…

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

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Q: he ground state energy of hydrogen atom is –13.6 eV. What are the kinetic and potential energies of…

A: Given : Ground state energy of hydrogen atom, E = − 13.6 eV The total energy of hydrogen atom…

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

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Q: (b) Photons are emitted by the electron making downward transitions that could eventually carry it…

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Q: *A hydrogen atom emits a photon of energy about 2.55 eV. What are the values of n for the initial…

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Q: The ionization energy for the hydrogen atom is 13.6 eV. What is the energy of a photon that is…

A: solution is given by

Q: A hydrogen atom has its electron in the n = 2 state. (a) How much energy would have to be absorbed…

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Q: Determine the distance between the electron and proton in an atom if the potential energy ?U of the…

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Q: A hydrogen atom has its electron in the n = 3 state. (a) How much energy would have to be absorbed…

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Q: The energy required to eject an electron from the surface of a metal is 4.8 eV. a) What is the…

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Q: What energy, in eV, is needed for an electron in an hydrogen atom to go from the ground state to the…

A: Given data The initial state of the electron in the atom is n1 = 0. The final state of the electron…

Q: An electron in a one-dimensional box has ground-state energy 2.00 eV. What is the wavelength of the…

A: Given: The energy of electron in-ground energy state = 2 eV

Q: The allowed energies of a quantum system are 0.0 eV, 1.5 eV, 3.0 eV, and 6.0 eV. How many different…

A: Allowed energies of the quantum system are E1 = 0.0 eV E2 = 1.5 eV E3 = 3.0 eV E4 = 6.0 eV

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: The orbital radius of an electron in a hydrogen atom is 0.846 nm.What is its de Broglie wavelength?

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Q: An electron in the n=6 energy level of an H atom drops to a lower energy level; the atom emits a…

A: Given data:               Wavelength of emitted photon, λ = 410 nm = 410×10-9 m…

Q: A hydrogen atom in its n = 4 state is ionized by absorbing a 268 nm photon. If all the excess energy…

A: Given that the wavelength of the photon is 268 nm. So, the energy obtained by absorbing a photon is…

Q: The ground state energy of hydrogen atom is -13.6 eV. What is the kinetic energy of an electron in…

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Q: A hydrogen atom is in the third excited state.To what state (give the quantum number n) should it…

A: (a)   When a hydrogen atom jumps from a state of the quantum number n’ to a state of the quantum…

Q: A hydrogen atom is in the n = 3 state. In the Bohr model, how many electron wavelengths fit around…

A: Given that the hydrogen atom the electron is in n =3 state. Find the wavelength for electron which…

Q: Find the energy of a singly ionized helium atom, whose electron is in the following state: n = 5.

A: Given:  Electron in state, n = 5Find: The energy of a single ionized helium atom.

Q: An electron in a quantum system has allowed energies E1=1.0 eV, E2 = 4.0 eV, and E3 = 6.0 eV. What…

A: Emission spectrum is obtained when an electron makes transition from higher energy state to lower…

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

A: Given Data: The radius of a hydrogen atom is, r1=5.3×10-11 m   The expression for the radius of nth…

Q: What is the energy change in eV corresponding to the transition from n=3 to n=4 of the hydrogen…

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Q: A singly ionized helium atom has an electron in the n = 1 state. What is the total energy of the…

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Q: What is the length of a one-dimensional box in which an electron in the n = 1 state has the same…

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Q: What is the energy of an electron with wavelength 680 nm?

A: Form the De Broglie equation, the momentum of the electron can be calculated if its wavelength is…

Q: What is the wavelength of an electron of energy(a) 10 eV, (b) 100 eV, (c) 1.0 keV?

A: (a) The energy of the electron is 10 eV. Calculation: Write the expression for the wavelength of the…

Q: What is the length of a box in which the minimum energy of an electron is 1.5 x 10-18 J?

A: The energy of a particle in the box is given by, En=n2h28mL2

Q: An electron in the 3 rd principal energy level w

A: For hydrogen atom , expression of energy , En= -13.6 /n2 ev where n is principle quantum number…

Q: Light with a frequency of 3.17 × 1015 Hz strikes a metal surface and ejects electrons that have a…

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Q: The wavelength of the Ka line from iron is 193 pm.What is the energy difference between the two…

A: Given:  Wavelength = 193 pm = 193 x 10-12 m Plank's constant, h = 6.63 x 10-34 Js velocity of light,…

Q: An electron in the n = 1 Bohr orbit has the kinetic energyK1. In terms of K1, what is the kinetic…

A: Given: Kinetic energy when n = 1 is K1

Q: A photon causes a hydrogen atom to transition from the ground state to the n = 4 state What is…

A: hydrogen's ground state energy = -13.6 ev Energy of n = 4 state = -13.6/(4)2 ev = -0.85 ev…

Q: A 1000 W carbon dioxide laser emits an infrared laser beam with a wavelength of 10.6 mm. How many…

A: The energy of a photon is, Ehcλ   Substitute, E=6.626×10-34 J.s3×108 m/s10.6mm×10-3 m1…

Q: Energy 9.0 eV n = 4 6.0 eV n = 3 4.0 eV n = 2 1.0 eV n = 1 Figure shows an energy-level diagram for…

A: When a particle or electron in atom jumps from higher state to lower state, It emits energy in the…

Q: An electron in a multielectron atom has ML=+4 . For this electron, what are (a) the value of , (b)…

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Q: A particular Bohr orbit in a hydrogen atom has a total energy of-0.85 eV. What are (a) the kinetic…

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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: