Question

Draw a Feynman diagram representing an electron interacting with the proton in a hydrogen atom.

Draw another diagram with 1 loop that also contributes

to the binding.

This second diagram is one of the contributions to the tiny energy shift observed in the n=2 level of hydrogen due to QED.

Answer #1

Feynman diagram and explanations are in images below:

A) Sketch a separate diagram for the energy levels of the
electron in the Hydrogen atom – The diagram should be to scale.
Annotate the diagram with the ground state energy E0, the principal
quantum number n, and the ionization energy of the atom (13.6
eV).
B) It is known that a certain hydrogen atom has n=5 and m=2. How
many different states are consistent with this information?
C) Answer the same question (in terms of n and m) for...

A simple model of a hydrogen atom is a positive point charge +e
(representing the proton) at the center of a ring of radius a with
negative charge −e distributed uniformly around the ring
(representing the electron in orbit around the proton). Find the
magnitude of the total electric field due to this charge
distribution at a point a distance a
from the proton and perpendicular to the plane of the ring.
Express your answer in terms of variables e...

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
velocity of 1090729.85781991 m/s.
What is the radius of the orbit?
What is the angular momentum, L, of the electron at this
radius?
What is the quantum value, n, of the electron at this
radius?
What is the total energy of the...

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?

in the bhor model of the hydrogen atom the electron is assumed
to orbit the proton in a circle at an average distance of
5.3x10^-11 m. the centripetal force keeping the electron in orbit
is due to the Coulomb force law. e= 1.6x10^-19C, electron = 9.11 x
10^-31
1. what is the electrons velocity?
2. how long does it take the electron to make one orbit around
the proton?
3. the current produced by the electron orbiting the proton is...

An electron in the d energy state level of a hydrogen atom is
placed in an external magnetic field. It is observed that a photon
of energy 1968 μeV is emitted when the electron transition from the
maximum to the minimum energy state.
a) Sketch the energy level diagram before and after the presence
of the magnetic field.
b) What is the intensity of the external magnetic field?

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...

1. The energy of the electron in the lowest level of the
hydrogen atom (n=1) is -2.179×10-18 J. What is the energy of the
electron in level n=5? -8.716×10-20 J 2.The electron in a hydrogen
atom moves from level n=6 to level n=4.
a) Is a photon emitted or absorbed?
b) What is the wavelength of the photon?

The hydrogen atom consists of one electron orbiting one proton
in a circular orbit.
(a) Using Coulomb's Law and concepts of
centripetal acceleration/force, show that the radius
r of the orbit is given by
where K is the kinetic energy of the electron,
k is the Coulomb's Law constant, +e is the charge
of the proton, and -e is the charge of the electron.
(b) Calculate r when the
kinetic energy of the electron is 13.6 eV.
(c) What percentage...

Question 1 In this question we undertake the Hydrogen Atom Model,
developed in 1913 by Niels Bohr. a) Write the electric force
reigning between the proton and the electron, in the hydrogen atom,
in CGS system. Then equate this force, with the force expressed in
terms of mass and acceleration, to come up with Bohr's equation of
motion. Suppose that the electron orbit, around the proton, is
circular. Use the following symbols, throughout. e: proton's or
electron's charge intensity(4.8x 10-8...

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