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Quantum Mechanics
Page 7
Questions (730)
why does the Shroedinger equation have a specific operator for kinetic energy and only a general expression (V) for potential
1 answer
asked by
quaffi
339 views
why does the Shroedinger equation have a specific operator for kinetic energy and only a general expression (V) for potential
1 answer
asked by
quaffi
363 views
I am a bit confused on working this problem:
Given that the work function (ƒÖ) for a metal is 1.82 eV, calculate the threshold
2 answers
asked by
suzane
576 views
How can I solve the following exercise: Use perturbation theory to calculate the energy levels of a particle in a box with a
1 answer
asked by
Juan Manuek
351 views
How can I solve the following ecercise: Use perturbation theory to calculate the energy levels of a particle in a box with a
7 answers
asked by
Juan Manuek
492 views
the aprroximate method to solve the shrodringer equation for hydrogen like atom?
Please help, thank
2 answers
asked by
bun
780 views
how could reunion be possible?
1 answer
asked by
Anonymous
320 views
What is the wavelength of the emitted photon, when the electron in the hydrogen atom makes a transition from the ni = 5 state to
1 answer
asked by
Beth
447 views
A proton is confined in an atomic nucleus of size 2 fm. Determine the fundamental limit on
the uncertainty of any prediction for
3 answers
asked by
Olivia
460 views
Heisenberg's Uncertainty Principle states that an electron spends ______ of its time inside an atomic orbital.
Question 19
3 answers
asked anonymously
61 views
The magnetic quantum number of an orbital defines:
The options are: a) The size of the atom b) The energy level of the outermost
3 answers
asked anonymously
66 views
The principal quantum number of the first d orbital is __________.
Question 27 options: a) 1 b) 2 c) 3 d) 4 e) 5 is the answer b)
3 answers
asked anonymously
28 views
Will the photoelectric effect change for different targets
1 answer
asked by
ashley --- HELP PLEASEE!!!
363 views
Marks: 3
If the velocity of the particle is reduced by a factor of two, by what factor does the de Broglie wavelength change?
1 answer
asked by
ashley --- HELP PLEASEE!!!
358 views
1. a) If a photon and an electron each have the same energy of 20.0 eV, find the wavelength of each. b) If a photon and an
3 answers
asked by
Anonymous
1,121 views
do atoms in a blackbody behave just like isolated atoms?
3 answers
asked by
Mark
20 views
Compute the de Broglie wavelength associated with a ping-pong ball that is moving with a velocity of 4 meters per second. The
2 answers
asked by
kyra
596 views
An electron traveling at 2.1×E5 m/s has an uncertainty in its velocity of 7.98×E4 m/s.
What is the uncertainty in its position?
2 answers
asked by
soso
502 views
An electron has an uncertainty in its position of 527 pm .What is the uncertainty in its velocity?
2 answers
asked by
soso
535 views
Calculate the de Broglie wavelength (in pm ) of a hydrogen atom traveling 445 m/s.
1 answer
asked by
soso
687 views
List the charge, mass, and location of each of the three subatomic particles found within atoms
1 answer
asked by
Anonymous
629 views
Description of the process from problem one:
Please help me fill in the blanks :) The _______ makes a transition from a _______
3 answers
asked by
Shawn Tabrizi
513 views
What is the de Broglie wavelength of electrons with the following value of kinetic energy? 1.06 eV;
What is the de Broglie
1 answer
asked by
VJC
351 views
1) An electron moving with a speed of 2.84E+6 m/s has the same momentum as a photon. Calculate the de Broglie wavelength of the
2 answers
asked by
VJC
604 views
I have a big exam tomorrow. Can anyone tell me any easy way to figure out the 4 quantum numbers, n, l, ml, and ms. i still get
1 answer
asked by
lavonne
431 views
true or false
an atom can emit photons in the visible portion of the electromagnetic spectrum after absorbing photons in the
1 answer
asked by
joly
448 views
How fast must a 138 g baseball travel in order to have a de Broglie wavelength that is equal to that of an x-ray photon with =
1 answer
asked by
HELP !
437 views
The ionization energy of a certain element is 472 kJ/mol. However, when the atoms of this element are in the first excited
4 answers
asked by
Alexis
615 views
heisenberg uncertainty principle can't be applied to stationary electron.why?
2 answers
asked by
Ashish
833 views
Use(o, he, ne,c) to answer the question.
Using the atoms above, What is the Pauli's exclusion principle ?
3 answers
asked by
A. B .I
32 views
if the initial orbital is 3 and the ending orbital is 2, what is the wavelength?
1 answer
asked by
ashley
337 views
The energy difference between states A and B is twice the energy difference between states B and C (C > B > A). In a transition
1 answer
asked by
Kelly
612 views
An electron and a proton each have a thermal kinetic energy of 3kBT/2. Calculate the de Broglie wavelength of each particle at a
2 answers
asked by
Sam
1,102 views
Write the Hamiltonian operator for 2 electrons in a 1D box of length a.
I know that the Hamitonian is a sum of the kinetic and
2 answers
asked by
Alice
472 views
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem
2 answers
asked by
Anonymous
976 views
The presence of oxygen atoms on the surface results in auger electrons with a kinetic energy of approximately 505 eV.
What is the
3 answers
asked by
Kyle
1,116 views
given E, = l^2 h^2 / 2 m r^2 calculate energies for an electron localised to a circle of radius 2 x 10^-9 m for l = 0,1,2, draw
1 answer
asked by
poppy
386 views
given E, = l^2 h^2 / 2 m r^2 calculate energies for an electron localised to a circle of radius 2 x 10^-9 m for l = 0,1,2, draw
1 answer
asked by
poppy
453 views
given E, = l^2 h^2 / 2 m r^2 calculate energies for an electron localised to a circle of radius 2 x 10^-9 m for l = 0,1,2, draw
1 answer
asked by
poppy
407 views
Using Planck's constant as h=6.63 E-34 J*s, what is the wavelength of a proton with a speed of 5.00 E6 m/s? The mass of the
3 answers
asked by
Hannah
2,176 views
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem
2 answers
asked by
jag
1,001 views
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem
2 answers
asked by
Sablan
854 views
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem
2 answers
asked by
bere
479 views
List 15 sets of quantum numbers (n,L,mL,ms) that could be used to describe all the electrons in phosphorous?
1 answer
asked by
Gweedo8
395 views
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem
2 answers
asked by
john doe
511 views
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem
4 answers
asked by
john browm
536 views
I think that:
psi= A sin kx; is a solution to Schrodinger's time independent eqn for a particle confined: a) within an infinite
1 answer
asked by
charlie
352 views
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem
4 answers
asked by
Anonymous
506 views
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem
3 answers
asked by
Jacob
451 views
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem
1 answer
asked by
Anonymous
419 views
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