ground state The lowest energy state that an electron can have within an atom.
GROUND STATE - Energy state of an atom, or of a solid, when its total energy equals the minimum possible energy for that atom or solid. For solids, this only occurs at a temperature of absolute zero.
Ground State
The lowest permitted orbit of an electron in an atom.
H ...
Ground State - The lowest energy level of an atom
HII Region - A region of ionized hydrogen surrounding a hot star. Ultraviolet radiation from the star keeps the gas in the HII region ionized ...
ground state - (n.)
The state of an atom in which all electrons are in the lowest possible energy levels.
group - (n.) ...
ground state The lowest energy state that an electron can have within an atom.
Harvard-Smithsonian Center for Astrophysics
60 Garden Street, Cambridge, MA 02138 USA
Phone: 617.496.7941 Fax: 617.495.7356 ...
Ground State
The minimum energy state of an atom that is achieved when all of its electrons have the lowest possible energy and therefore are as close to the nucleus as possible.
Intensity ...
The ground state of an electron, the energy level it normally occupies, is the state of lowest energy for that electron.
The ground state energy level of the electron in a hydrogen atom is âˆ'13.6 eV, which is equivalent to an ultraviolet photon of roughly 92 nm.[17] ...
Thus, the ground state has energy E1 = 0 (by our definition), the first excited state has energy E2 = 10.2 eV, the second excited state has energy E3 = 12.1 eV, and so on.
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175. Ground State
The lowest permitted orbit of an electron in an atom.
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H ...
These gases allow visible light from the Sun to reach the surface but prevent the infrared light from the heated surface to radiate back to space. ground state the lowest energy state of an atom---all of the electrons are as close to the ...
The ground state is the lowest energy state of a nucleus.
GUNPOWDER
The (made of saltpeter, sulfur, and charcoal dust) roughly 1,000 years ago.
The Polish Underground State refers collectively to the Polish resistance movement in World War II in Poland during World War II, both military and civilian, loyal to the Polish Government in Exile in London....
was formed.
GROUNDSTATE
The ground state is the lowest energy state of a nucleus.
...
The pumping mechanism is termed collisional or radiative according to the nature of the process that dominates the molecular excitation from the ground state.
Electrons don't want to be in higher orbits; they like to be in a low energy state (mainly the ground state) - remember, they are lazy and like to have low energies. They want to get rid of any energy they pick up.
If atoms are left undisturbed, they usually drop to the lowest available energy level and stay there, in their "ground state." Occasionally, however, they may also be pushed up to some higher energy ("become excited") e.g.
Atoms prefer to be in their ground state, where all of the electrons are located as close to the nucleus as possible.
The accepted scientific definition of the second is now 9,192,631,770 periods of radiation corresponding to the transition between the two hyperfine levels in the ground state of caesium 133.
However, the beryllium-8 ground state has almost exactly the energy of two alpha particles. In the second step, 8Be + 4He has almost exactly the energy of an excited state of 12C.
2 electron volts is required to promote the electron from its ground state to the first excited state. A different excitation energy (12.1 electron volts) is needed to raise the electron from its ground state to the second excited state.
H2 in the ground state can be detected only via absorption, in the Lyman and Werner bands deep in the UV (below 1108 Angstroms), ...
012 kilogram (or 12 grams) of carbon-12, where the carbon-12 atoms are unbound, at rest and in their ground state. This number is known as the Avogadro constant, and is determined empirically. The currently accepted value is 6.
weak at low temp : all in ground state (n=1)
weak at high temp : all ionized
strongest at about 10,000K (A0 stars)
Classification of absorption spectra ...
Definition: second; s: The fundamental SI unit of time, defined as the period of time equal to the duration of 9,192,631,770 periods of the radiation corresponding to the transition between two hyperfine levels of the ground state of the ...
The second is the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium-133 atom (13th CGPM (1967), Resolution 1).
Lyman series
The series which describes the emission spectrum of hydrogen when electrons are jumping to the ground state. All of the lines are in the ultraviolet.
The red colors represent what is known as an emission nebula, where ionized hydrogen (which was excited by energy from nearby young, hot stars) falls back to its unexcited, normal, run of the mill ground state.
Hydrogen Energy Levels is a simple applet demonstrating the use of the Bohr equation to calculate the energy levels of a hydrogen atom. It shows an energy level diagram vertically from infinity to the ground state.
excimer lasers (NASA Thesaurus) Molecular lasers using vibronic transitions whose lasing medium is a dimer that exists in the excited state and dissociates in the ground state.
 See also: Energy, Light, Electron, Photon, Atom
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