Suppose a photon is absorbed by the electron in a hydrogen atom
in an n= 2 state. What wavelength should the photon have to enable
the electron to transition to the n= 4
state? Once the photon is absorbed, what are the various
wavelengths of photons that could be emitted by the atom? (Use Bohr
approximation).
Calculate the energy (J) of the photon emitted when an electron
in the hydrogen atom falls from n=5 to n=2 .
Use 2.178 x 10-18 J for the constant in the Bohr
equation.
Answer should be in scientific notation, e.g.
3000 = 3E3
I have no idea how to get this problem help me!!
A hydrogen atom emits a photon of energy about
13.22 eV. What are the values of n for the initial
and final states involved in this transition?
ni =
[5 points] 0 attempt(s) made (maximum allowed for
credit = 5)
nf
=
[5 points] 0 attempt(s) made (maximum allowed for
credit = 5)
a) A photon is observed coming from an isolated hydrogen atom
with 1.89eV energy. What transition has just been observed?
Select one:a. n=4 to n=2b. n=5 to n=3c. n=3 to n=2d. n=5 to
n=4
b) The number of electrons per second ejected from a metal in
the photoelectric effect is proportional to
Select one:a. the frequency of the incident light b. the
threshold frequency of the material c. the wavelength of the
incident light d. the intensity of the incident...
An electron in a Hydrogen atom originally at n=5
energy level absorbs a photon with a frequency of 6.54×10^13 and
then proceeds to emit another photon with a frequency of
2.98×10^14. To what energy level does the electron move?
(A) Is it possible for a photon to emerge when a bound Hydrogen
atom changes its state from n = 6, ell = 3 to n = 3, ell = 2? If
not, explain.
(B) Is it possible for a photon to emerge when a bound Hydrogen
atom changes its state from n = 3, ell = 2 to n = 6, ell = 3? If
not, explain.
(C) Is it possible for a photon to emerge when a bound...
A hydrogen atom
(Z = 1)
is in the fourth excited state, and a photon is either emitted
or absorbed.
Concepts:
(i) What is the quantum number of the fourth excited state?
12 345
(ii) When an atom emits a photon, is the final quantum number
nf
of the atom greater than or less than the initial quantum
number ni?
greater thanless than
(iii) When an atom absorbs a photon, is the final quantum
number
nf
of the atom greater than...
a. A relatively rare transition of the hydrogen atom emits a
radio photon with with ? = 21 cm. This emission line is extremely
important to astronomers for two main reasons: it cuts through most
gas and dust without being absorbed and, although transition is
rare, there is so much hydrogen in space that the 21 cm photons are
themselves quite common. Suppose that one such photon from a
distant galaxy is measured to have a wavelength of just 11...
a hydrogen atom in the ground state absorbs a photon
of light with a wavelength of 97.3nm causing the electron to jump
to an unknown energy level. the electron then relaxes emitting a
photon of light in the visible range, what is the wavelength of the
emitted photon?