Question

in the problem, you can assume a "hydrogen-like" nucleus. You have a selenium atom, with an electron in the 5th excited state. The electron undergoes spontaneous emission and Is in the third excited state.

a.) what is the energy of the photon emitted?

b.) what is the frequency of the photon?

c.) what is the difference in the radius of the orbits?

Answer #1

A hydrogen atom transitions from the n = 6 excited state to the
n = 3 excited state, emitting a photon.
a) What is the energy, in electron volts, of the electron in the
n = 6 state? How far from the nucleus is the electron?
b) What is the energy, in electron volts, of the photon emitted
by the hydrogen atom? What is the wavelength of this photon?
c) How many different possible photons could the n = 6...

The electron in a hydrogen atom falls from an excited energy
level to the ground state in two steps, causing the emission of
photons with wavelengths of 656.5 nm and 121.6 nm (So the in the
first step the 656.5 nm photon is emitted and in the second step
the 121.6 nm photon is emitted). What is the principal quantum
number (ni) of the initial excited energy level from which the
electron falls?

1. a. A photon is absorbed by a hydrogen atom causing an
electron to become excited (nf = 6) from the ground state electron
configuration. What is the energy change of the electron associated
with this transition?
b. After some time in the excited state, the electron falls from
the n = 6 state back to its ground state. What is the change in
energy of the electron associated with this transition?
c. When the electron returns from its excited...

I want you to compare particle in a box with the Bohr atom. For
the particle in the box you can assume the size is .5x10^-10 m and
the particle that is trapped is an electron. For the Bohr atom
consider a hydrogen atom.
a.) What is the energy of photon emitted when the electron drops
from 3->2 and 2->1 in the particle in a box?
b.) What is the energy of photon emitted when the electron drops
from 3->2...

Answer the following questions using the Bohr model of the
hydrogen atom.
a) A hydrogen atom is the n = 3 excited state when its electron
absorbs a photon of energy 4.40 eV. Draw a diagram roughly to
scale, of relevant energy levels for this situation. Make sure to
show and label the initial energy of the H atom in the n=3 state,
the energy level at which this atom loses its electron, and kinetic
energy of the electron.
b)What...

A hydrogen atom at rest is initially in an excited state
corresponding to n = 5.
a- Give the quantum numbers (l) and (m) which correspond to n =
5
b- What is the ionization energy of the atom in this state?
c- What is the frequency of the photon emitted when it returns
to its ground state n = 1?
d- Estimate the momentum and the kinetic energy of the atom's
recoil during the photon emission.
mH= 1.007825? 1?...

A hydrogen atom (Z=1) is in the third excited state. It makes a
transition to a different state, and a photon is either emitted or
absorbed. Answer the following conceptual questions:
What is the quantum number of the third excited state?
When an atom emits a photon, is the final quantum number of the
atom greater than or less than the initial quantum number?
When an atom absorbs a photon, is the final quantum number of
the atom greater than...

A hydrogen atom is in its third excited state. The atom emits a
1.88E+3nm wavelength photon. Determine the maximum possible orbital
angular momentum of the electron after emission. Express your
answer as multiples of hbar.

An electron in an excited state
of a hydrogen atom emits two photons in succession, the first at
3037 nm and the second at 94.92 nm, to return to the ground state
(n=1). For a given transition, the wavelength of the emitted photon
corresponds to the difference in energy between the two energy
levels.
What were the principal quantum numbers of the initial and
intermediate excited states involved?

A Hydrogen atom has one proton in the nucleus and one electron
in the shell. In a classic model of the atom, in a certain state,
this electron is in a circular orbit around the nucleus with an
angular momentum of 9.495e-34 Js.
What is the radius of the orbit?
4.30×10-9m
What is the speed of the electron at this radius?
What is the kinetic energy of the electron at this
radius?
What is the kinetic energy in electron-volts?

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