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Quantum Mechanics
Page 9
Questions (730)
How does an electron relate to energy level?
How does subatomic particles relate to atomic unit? The reviews ask for 1 to 2
2 answers
asked by
liz
1,129 views
what is the characteristic wavelength of an electron (in nm) that has a velocity of 5.97 X 10^6 ms^-1 (me=9.11 X 10^-31kg)?
3 answers
asked by
justin
1,071 views
A molecule of oxygen gas (O2) has a velocity of 2800 m/s. What is its de Broglie wavelength?
3 answers
asked by
Ashley
1,070 views
What does it mean to say that something is quantized?
2 answers
asked by
Dallas
1,047 views
H2P4: PHOTON EMISSION
An electron in Li2+ falls from n = 2 to the ground state. Calculate the wavenumber, (νˉ), of the emitted
2 answers
asked by
Alyssa
1,054 views
A 247 lb fullback runs the 40 yd dash at a speed of 17.09 ± 0.1 mi/h.
(a) What is his de Broglie wavelength (in meters)? (b)
2 answers
asked by
Amanda
1,038 views
A hydrogen atom is in its n = 6 excited state. Determine, according to quantum mechanics, each of the following:
(a) The total
1 answer
asked by
MIke
1,069 views
What are the wavelengths, in nanometers, of the bright lines of the hydrogen emission spectrum corresponding to the transition:
3 answers
asked by
Anonymous
1,077 views
The speed of an electron is known to be between 3.0×10^6 m/s and 3.3×10^6 m/s . Estimate the uncertainty in its position.
2 answers
asked by
paige
1,054 views
Assuming that the smallest measurable wavelength in an experiment is 0.410 fm (femtometers), what is the maximum mass of an
4 answers
asked by
Casey
1,043 views
calculate the velocities of electrons with de Broglie wavelengths of 1.0x10^2nm and 1.0nm
3 answers
asked by
joanne
1,015 views
An x-ray generator operated at a plate voltage of 7000 V is incapable of producing Ni Kα radiation. Calculate the minimum
5 answers
asked by
selly
1,003 views
What is the shortest wavelength of light that can be emitted by a hydrogen atom that has an initial configuration of 7p1?
1 answer
asked by
Anonymous
1,015 views
What is the unit m^-1?
The question I'm working on says "an electron in the hydrogen atom makes a transition from an energy state
2 answers
asked by
Quinn
1,032 views
Quantum numbers arise naturally from the mathematics used to describe the possible states of an electron in an atom. The four
4 answers
asked by
Paige
1,048 views
The third longest wavelength in the Paschen series in hydrogen corresponds to what transitions?
1 answer
asked by
qwer
1,004 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 a
2 answers
asked by
Haley
1,003 views
What is a joule second?(not per second)ie:planks constant.
Why do s orbitals (l=0)have zero angular momentum?
1 answer
asked by
nikibobs
979 views
list 10 practical applications of schrodinger wave equation.?
3 answers
asked by
MR TRUMP★★★
982 views
A scientist has devised a new method of isolating individual particles. He claims that his method enables him to detect
2 answers
asked by
Brian
975 views
An electron initially in the n = 2 energy level in a hydrogen atom absorbs a photon of light with a frequency of 6.167 x 1014
2 answers
asked by
Kim
985 views
an electron in a one-dimensional box requires photons with a wavelength 8080 nm to excite it from the n=2 energy level to the
3 answers
asked by
erica
944 views
) What is the minimum uncertainty in the velocity of an electron that is known to be somewhere between 0.050 nm and 0.10 nm from
2 answers
asked by
Jake
943 views
Assuming that the smallest measurable wavelength in an experiment is 0.330 fm (femtometers), what is the maximum mass of an
4 answers
asked by
Bill
978 views
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object.
2 answers
asked by
lindsay
922 views
The mass of an electron is 9.11× 10–31 kg. What is the uncertainty in the position of an electron moving at 5.00 × 106 m/s
2 answers
asked by
durr
910 views
A monochromatic light beam with energy 204eV is used to excite the Be+3 (H –like atom with Z=4) from its ground state to some
2 answers
asked by
qwer
919 views
After undergoing through 90 degree compton scattering, the fraction of energy lost by photon is
A) 10 % B) 50 % C) 20 % D) Zero
3 answers
asked by
Fayzan Ahmed
896 views
calculate the wavelength of an electron m=9.11 x 10^-28 g moving at 3.66x10^6 m/s
2 answers
asked by
trinh lowery
892 views
A ground state hydrogen atom absorbs a photon of light having a wavelength of 93.03 nm. It then gives off a photon having a
2 answers
asked by
Emma
903 views
calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition from
n=5 to n=1 how do I do
5 answers
asked by
Lisa
920 views
In the ground state of an atom of silver (Ag), how many electrons will there be with the quantum number l = 1?
1 answer
asked by
Shadow
899 views
According to the Heisenberg uncertainty principle, if the uncertainty in the speed of an electron is 3.5 x 10(3) m/s, the
2 answers
asked by
lavonne
899 views
An alpha particle (mass = 6.6 10-24 g) emitted by radium travels at 2.5 107 ± 0.1 107 mi/h.
(a) What is its de Broglie
2 answers
asked by
Kate
898 views
Does the de Broglie model assert that an electron must be moving in order to have wave properties?
3 answers
asked by
Tammy
878 views
Two infinitely long slits, S1 and S2, each of width d=0.1 cm are used to prepare a box-shaped electron beam with energy E=400
1 answer
asked by
Anna
869 views
The work function for potassium is 2.24eV.
If potassium metal is illuminated with light of wavelength 310 nm, find the maximum
4 answers
asked by
Emily
913 views
what is the wavelength of a photon emitted during a transition from the initial state(ni)=5 state to the final state(nf)=2 state
2 answers
asked by
masre man
865 views
what is the minimum uncertainty in the position of an electron moving at a speed of 4 x 10^6 m/s ± 1 %?
I keep getting 1.44
2 answers
asked by
CL
881 views
A) n=1 l=0 ml=0 ms=1/2
B) n=3 l=1 ml=-1 ms=1/2 C) n=2 l=0 ml=0 ms=-1/2 D) n=2 l=1 ml=0 ms=1/2 E) n=3 l=2 ml=0 ms=1/2 F) n=2 l=1
4 answers
asked by
Harold
898 views
What kind of experiment might you use to distinguish between a gamma ray of wavelength 10^-11m and an electron whose de Broglie
2 answers
asked by
Sheryl
869 views
If a proton were traveling the same speed as electrons in a TV picture tube (about 7.2 107 m/s), what would its de Broglie
2 answers
asked by
Anonymous
876 views
Where is an electron in 3Py orbital most likely to be found and where does the probability it vanish?
2 answers
asked by
JK
864 views
Observing electron interference through an ordinary macroscopic two-slit experiment would be extremely difficult and would
1 answer
asked by
Alphonse
845 views
Calculate the de Broglie wavelength (in pm) of a hydrogen atom traveling 450 m/s .
2 answers
asked by
samantha
854 views
How fast must a 56.5 g tennis ball travel in order to have a de-Broglie wavelength that is equal
to that of a photon of green
1 answer
asked by
Brittany
849 views
According to the Heisenberg uncertainty principle, if the uncertainty in the speed of an electron is 3.5 x 10(3) m/s, the
2 answers
asked by
lavonne
846 views
The Heisenberg Uncertainty Principle:
A student is examining a bacterium under the microscope. The E. coli bacterial cell has a
1 answer
asked by
Anna
851 views
A photon interacts with a ground state electron in a hydrogen atom and is absorbed. The electron is ejected from the atom and
3 answers
asked by
cristie
846 views
The hydrogen atom consists of a proton with an electron in orbit about the proton. The laws of quantum mechanics determine that
5 answers
asked by
Sandhya
842 views
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