In one model of the hydrogen atom, an electron orbits a proton
in a circle of radius 5.28×10-11 m with a speed
of 2.18×106 m/s. What is the acceleration of
the electron in this model?
What is the period of the motion?
In a hydrogen atom, a proton is separated from an electron by an
average distance of about 5.3 10-11 meters.
Use the information below to calculate the force of attraction by
the electron on the proton.
Electron Mass = 9.11 10-31 kg
Proton Mass = 1.67 10-27 kg
Elementary Charge = 1.602 10-19 C
Coulomb's Constant (k) = 8.99 109
Nmm/CC
Avagadro's Number = 6.02 1023 atoms/mole
An electron in a hydrogen atom orbits the proton at a radius of
5.29 x 10-11 m. Considering the proton to be at the
origin, and answering to 2 decimal places:
(a) What is the electric field due to the proton at the position
of the electron? (answer in terms of r, theta, and phi).
(b) What is the resultant force on the electron? (answer in
terms of r, theta, and phi).
(c) What is the magnitude of the resulting...
Suppose the electron in a hydrogen atom is modeled as an
electron in a one-dimensional box of length equal to the Bohr
diameter, 2a0. What would be the ground-state
energy of this "atom"?
______________eV
Early 20th-century physicist Niels Bohr modeled the hydrogen
atom as an electron orbiting a proton in one or another
well-defined circular orbit. When the electron followed its
smallest possible orbit, the atom was said to be in its ground
state. (a) When the hydrogen atom is in its ground state, what
orbital speed (in m/s) does the Bohr model predict for the
electron? m/s (b) When the hydrogen atom is in its ground state,
what kinetic energy (in eV) does...
An electron collides elastically with a stationary hydrogen
atom. The mass of the hydrogen atom is 1837 times that of the
electron. Assume that all motion, before and after the collision,
occurs along the same straight line. What is the ratio of the
kinetic energy of the hydrogen atom after the collision to that of
the electron before the collision?
The
hydrogen atom electron is in the ground state. The electron absorbs
energy and makes a transition to the n=3 state. Then it returns to
the ground state by emitting two photons when going to n=2 and then
n=1 states.
A. What are the wavelengths of these photons?
B. What will be the wavelength if only one photon is
emitted?
C. What is the maximum number of electrons with ml=3 in the
shell with n=5?
D. How many electrons with...
Consider a hydrogen atom with its electron in the nth orbital. Electromagnetic radiation of wavelength 90 nm is used to ionize the atom. If the kinetic energy of the ejected electron is 10.4 eV, then the value of n is (hc = 1242 eV nm).
In the ground state of the Hydrogen atom the energy of the
electron is E0 = -13.61 eV. What is the energy of the
electron in the ground state of the He+ ion?
Tries 0/20
What is the energy of the electron in the ground state of the
Li++ ion?
Tries 0/20
The electron in the He+ ion is excited to the
n = 2 principal state. What is the energy of the
electron now?
Tries 0/20
What is the...