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Atomic Physics
Page 7
Questions (316)
What is the mass of a neutron?
1/2,000 amu 1 amu 2,000 amu 1/200 amu
1 answer
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The radius of a hydrogen atom is 0.529×10 _10 m and its mass is 1.67 × 10_27 kg .Calculate its density in kg/m.
1 answer
asked by
Rofiat
16 views
What is the ability of a atom to give off charged particals energy from its nucleus
radio waves half life radin waves radiant
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the radius of hydrogen atom is 0.0000000529177 of a millimeter express the number as an approximation.
1 answer
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Dina computed the mass of 1,000 protons in grams. The calculator displayed the number 1.67E - 21. What is the mass of 1,000
1 answer
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The half-life of uranium-235 is 700,000,000 years. The half-life of uranium-238 is 4.463×1011 years longer. What is the
1 answer
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Which statement BEST describes what happens in radioactive decay?
Question 4 options: The nucleus emits particles and/or energy.
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What happened when two atoms collided
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calculate the:
(a) energy required to excite the hydrogen electron from its ground state to level n=2, and (b) wavelength of
1 answer
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An excited hydrogen atom emits light with a frequency of 1.141x10^14 Hz to reach the energy level of which n=5
(a)in what
1 answer
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What is the radius in nm of the electron orbit of a hydrogen atom for n = 4?
____nm
1 answer
asked by
Truth
10 views
Distinguish between a ground state for an electron and an excited state. (Select all that apply.)
The electron does not have the
1 answer
asked by
Truth
15 views
Calculate the frequency of photon emitted when a transition take place from a higher energy level of -0.85eV to lower energy
1 answer
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Which force controls the size of an atomic nucleus?(1 point)
Responses gravitational force gravitational force weak nuclear force
1 answer
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Which statement best describes the effect of radioactive decay on a nucleus?(1 point) Responses The resulting nucleus is less
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Use the image to answer the question.
A dashed line at the bottom depicts the lowest energy level (normal state). A dashed line
1 answer
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Parent Categories (7)
Electromagnetism
Optics
Particle Physics
Physics
Quantum Mechanics
Quantum Physics
Science and Technology