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Atomic Physics
Page 5
Questions (316)
Hydrogen atom is initially in the ground state. It is excited by a photon bombardment and it then undergoes a transition from n
1 answer
asked by
qwer
810 views
λ for one line of the hydrogen spectrum is .4118 x 10-4 cm. Use this value in the Rydberg equation to calculate the RH value
1 answer
asked by
Mary
750 views
do all electrons ejected from a metal surface have the same kinetic energy?
2 answers
asked by
Anonymous
729 views
the particles in a nucleus are held together primarily by the ?
2 answers
asked by
linda
705 views
Could someone help me on how to put this all together.
Atomic physicists ignore the effect of gravity within an atom. To see why,
2 answers
asked by
Olivia
749 views
I'm sorry if it's a lot, but I want to make sure I didn't do any mistakes on this worksheet. Thanks!!1. If the mass of a Ne-20
2 answers
asked by
Emily
704 views
Q.4. Calculate the binding energy per nucleon of 20 Ca40 which has atomic mass of 39.975 a.m.u The mass of
hydrogen atom is
2 answers
asked by
Niranjan
719 views
Suppose an electron was bound to a proton as in the hydrogen atom, but by the gravitational force rather than by the electric
1 answer
asked by
Katie
698 views
When the electron in a hydrogen atom moves from n = 5 to n = 1, light is emitted.
Calculate the energy of the light?
2 answers
asked by
rajaee
706 views
In Rutherford's scattering experiments, alpha particles (charge = +2e) were fired at a gold foil. Consider an alpha particle,
3 answers
asked by
mdave
694 views
I have this question from an old exam for review. I tried the question but can't get the right answers.
An electron in an
2 answers
asked by
Kara
699 views
What can you say about the energy spread of the radiation emitted by an atomic gas?
2 answers
asked by
Emily
670 views
What is the frequency of a photon resulting from the transition of
n=6 -->n=1? for what atom. H? U? Na? If for H, use one of the
1 answer
asked by
Mary
671 views
The Rydberg equation, with n1=1, predicts an ultraviolet series of spectral lines of atomic hydrogen. Which of the following
2 answers
asked by
lavonne
682 views
the atomic spectrum of lithium has a strong red line at 670.8 nm. what is the energy of each photon of this wave length? What is
2 answers
asked by
Maxx
667 views
A potassium metal has a work function F = 4.41 x 10-19 J. Calculate the velocity of electrons emitted by exposing the metal to
2 answers
asked by
Kevin
662 views
What is the empirical distinction between emission and absorption spectra? In general terms, how did Niels Bohr explain each of
1 answer
asked by
Raj
681 views
A uranium and iron atom reside a distance R = 28.70 nm apart. The uranium atom is singly ionized; the iron atom is doubly
1 answer
asked by
Kels
659 views
A line in the Lyman series of the hydrogen atom emission results from the transition of an
electron from the n=3 level to the
4 answers
asked by
Ashley
671 views
Experimentally the ionization energy of hydrogen is 1312.2 kJ / mol. What would be the wavelength (nm) of a photon with enough
7 answers
asked by
Sierra
653 views
1. A gold atom has a mass of 3.287 • 10-25 kg and is at rest. It emits an alpha particle that has a mass of 6.646 • 10-27
4 answers
asked by
Riley
660 views
Someone please help me, I am having the worst time understanding this problem. Where do I begin?
Atomic physicists ignore the
6 answers
asked by
Olivia
631 views
The first excited state of the hydrogen atom is separated from the ground state by 10.2 eV.
(a) At what wavelength does this
3 answers
asked by
Hobson
650 views
help needed in drawing the diagram to show how hydrogen has numerous spectral lines
I also need help with this question....
1 answer
asked by
ruby
628 views
In the Bohr theory of the hydrogen atom, an electron moves in a circular orbit about a proton, where the radius of the orbit is
2 answers
asked by
smita
635 views
If the density of atoms in a material is 1026 metres-3, and 0.04% of a beam of neutrons is stopped in a 2 cm slab of the
3 answers
asked by
Dwayne
613 views
I am confused on how to even start this problem...
A ground state H atom absorbs a photon of wavelength 94.91 nm, and its
2 answers
asked by
Candace
639 views
In the Bohr model of the hydrogen atom,
the speed of the electron is approximately 2.41 × 106 m/s. Find the central force acting
2 answers
asked by
JRD
613 views
Sometimes the north and south poles of atoms in a material will line up. What is the term for the region where this occurs?
2 answers
asked by
jflks
581 views
Calculate the ionization energy of doubly ionized Lithium, which has Z=3. Construct also the energy level diagram for it.
1 answer
asked by
qwer
591 views
1.Distinguish between atomic physics and nuclear physics?
2.Briefly describe the Bohr model of the atom. What is Bohr’s key
2 answers
asked by
Will
600 views
The nucleus of the helium atom contains two protons that are separated by about 3.0 x 10-15 m. Find the magnitude of the
2 answers
asked by
Arnold Manguy
583 views
An electron drop to what energy level is likely to emit a photon in the infrared region?
2 answers
asked by
liz
561 views
When irradiated with a radiation of wavelength 58.4 nm the electron of H atom was ejected
with kinetic energy 7.6 eV. Calculate
2 answers
asked by
kamila t arakkal
586 views
If a polonium-210 (Po-210) atom has just decayed, how close can the ejected
alpha particle get to a neighboring Po-210 nucleus?
5 answers
asked by
Marty
582 views
In the Bohr model of the hydrogen atom, the speed of the electron is approximately 2.45 × 106 m/s.
Find the central force acting
2 answers
asked by
Kaylee
574 views
Excited state electrons lose energy when they move to the ground state.
2 answers
asked by
Sarah
552 views
The discreteness of the energy levels of electrons about the atomic nucleus is best understood by considering the electron to be
2 answers
asked by
Beth
559 views
What are emission spectra?
Is it correct to say . The pattern of spectral emission lines produced by an element.Each element has
2 answers
asked by
mike
570 views
"explain with the help of an appropriate labelled sketch diagram how hydrogen atom which has only one electron has so many
1 answer
asked by
Hol
580 views
A line in the hydrogen atomic line spectrum has a wavelength of 486 nm. What is
the frequency of this light (in Hz)?
3 answers
asked by
Sam
549 views
An alpha particle collides with an oxygen nucleus, initially at rest. The alpha particle is scattered at an angle of 60.9°
2 answers
asked by
siera
552 views
A proton beam is made by accelerating protons in a high voltage electric field. The protons have a velocity of 2.75 x 107 m/s.
2 answers
asked by
Shell
537 views
an electron in a one-dimensional box undergoes a transition from the n=3 level to the n=6 level by absorbing a photon of wave
2 answers
asked by
Husnul
532 views
an electron in the second energy level absorbs a photon of energy 6 ev what's the speed of the ejected electron?
I have tried to
2 answers
asked by
K
533 views
Electron exhibiting a particle wavelength of 5.2 x 10-9 are emitted from hydrogen atoms after interaction with high energy
6 answers
asked by
Chemistry
537 views
The atoms in a gas (gas constant R=8.31 J/mol-K) can be treated as classical particles if their de Broglie wavelength ă is
2 answers
asked by
Bun
539 views
Under appropriate conditions, molybdenum emits X rays that have a characteristis wavelength of 0.711 Angstrom.
These X rays are
2 answers
asked by
Tammy
519 views
Calculate the energy (in eV) of the three lowest energy transitions in the Lyman series (the series that ends on n=1) of
2 answers
asked by
Maria
537 views
What is the significance in the observation of discrete spectral lines in the emission spectrum of hydrogen??
2 answers
asked by
Anna
512 views
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Parent Categories (7)
Electromagnetism
Optics
Particle Physics
Physics
Quantum Mechanics
Quantum Physics
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