What is the maximum number of electrons in the first energy shell of an atom?
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Electron shell
first energy shell What is the maximum number of electrons in the first energy shell of an atom?
Electron shell Shell Energy Ionization energy Energy level Bohr model Nuclear shell model 1973 oil crisis Shell Oil Company Davis–Besse Nuclear Power Station Aera Energy
In chemistry and atomic physics, an electron <b>shell</b>, or a principal <b>energy</b> level, 
may be thought ... Each <b>shell</b> can contain only a fixed number of electrons: The 
<b>first shell</b> can hold up to two electrons, the second <b>shell</b> can hold up to eight (2 + 
6)&nbsp;... <b>Shell Energy</b> Retail Limited, formerly <b>First</b> Utility, is a supplier of gas, electricity 
and broadband in the United Kingdom. In October 2013 the Coventry-based&nbsp;... In physics and chemistry, ionization <b>energy</b> (American English spelling) or 
ionisation <b>energy</b> ... For example, the <b>first</b> three ionization energies are defined 
as follows: ... When the next ionization <b>energy</b> involves removing an electron from 
the same electron <b>shell</b>, the increase in ionization <b>energy</b> is primarily due to the&nbsp;... Each <b>shell</b> can contain only a fixed number of electrons: The <b>first shell</b> can hold 
up to two electrons, the second <b>shell</b> can hold up to eight (2 + 6) electrons, the&nbsp;... The 3 → 2 transition depicted here produces the <b>first</b> line of the Balmer series, 
and for hydrogen (Z = 1) it results in a photon of wavelength 656 nm (red light). In 
atomic physics, the Rutherford–Bohr model or Bohr model, presented by Niels 
Bohr and ... The <b>energy</b> gained by an electron dropping from the second <b>shell</b> to 
the <b>first</b>&nbsp;... In nuclear physics and nuclear chemistry, the nuclear <b>shell</b> model is a model of 
the atomic nucleus which uses the Pauli exclusion principle to describe the 
structure of the nucleus in terms of <b>energy</b> levels. The <b>first shell</b> model was 
proposed by Dmitry Ivanenko (together with E. ... This one is in the <b>first</b> (i.e. lowest 
<b>energy</b>) state of the 4th <b>shell</b>, which is a&nbsp;... The 1973 oil crisis began in October 1973 when the members of the Organization 
of Arab ... It was later called the &quot;<b>first</b> oil shock&quot;, followed by the 1979 oil crisis, 
termed the ... In 1925, oil had accounted for one-fifth of American <b>energy</b> use; by 
the time World War II ... BP &middot; Chevron &middot; Eni &middot; ExxonMobil &middot; Royal Dutch <b>Shell</b> &middot; 
Total. <b>Shell</b> Oil Company is the United States-based wholly owned subsidiary of Royal 
Dutch <b>Shell</b>, ... The <b>Shell</b> Oil Refinery in Martinez, California, the <b>first Shell</b> 
refinery in the United States, supplies <b>Shell</b> and Texaco stations in the West and 
Midwest. ... The <b>Shell</b> Oil Company&#39;s former Natural Gas, and <b>energy</b> divisions 
are now&nbsp;... Davis–Besse is operated by the <b>FirstEnergy</b> Nuclear Operating Company, a 
subsidiary of <b>FirstEnergy</b>. Throughout its operation, Davis-Besse has been the 
site&nbsp;... Aera Energy LLC (Aera) is a natural gas, oil exploration and production company 
jointly owned by <b>Shell</b> Oil Company and ExxonMobil headquartered in 
Bakersfield, California. ... Aera is the <b>first energy</b> company to receive the award.<sup>9</sup>
&nbsp;...
Electron shell Energy level Ionization energy Aufbau principle Bohr model Atomic orbital Octet rule Electron configuration Principal quantum number Franck–Hertz experiment
In chemistry and <b>atomic</b> physics, an <b>electron shell</b>, or a principal <b>energy level</b>, 
may be thought ... Each <b>shell</b> can contain only a fixed <b>number of electrons</b>: The 
<b>first shell</b> can hold up to two <b>electrons</b>, the second ... that travel farthest from the 
nucleus, that is, those with the <b>highest energy</b>, and not necessarily in the valence 
<b>shell</b>. A quantum mechanical system or particle that is bound—that is, confined 
spatially—can only take on certain discrete values of <b>energy</b>, called <b>energy</b> levels
. This contrasts with classical particles, which can have any <b>amount</b> of <b>energy</b>. 
The term is commonly used for the <b>energy</b> levels of <b>electrons</b> in <b>atoms</b>, ions, ... 
Each <b>shell</b> can contain only a fixed <b>number of electrons</b>: The <b>first shell</b> can&nbsp;... The <b>maximum</b> ionization <b>energy</b> for each row diminishes as one progresses from 
row 1 to row 7 in a given column, due to the increasing distance of the outer 
<b>electron shell</b> from the nucleus as inner <b>shells</b> are added. In physics and 
chemistry, ionization <b>energy</b> (American English spelling) or ionisation <b>energy</b> ... 
<b>Number of electron shells</b>: the greater the size of the <b>atom</b>, the less tightly the&nbsp;... Electrons occupy the <b>shells</b> and sub-<b>shells of an atom</b> in approximate 
accordance with the aufbau principle. The aufbau principle, from the German 
Aufbauprinzip (building-up principle), also called the aufbau rule, states that in 
the ground state of an <b>atom</b> or ion, electrons fill <b>atomic</b> orbitals of the lowest 
available <b>energy</b> ... The <b>maximum number of electrons</b> in any <b>shell</b> is 2n<sup>2</sup>, where 
n is the&nbsp;... The 3 → 2 transition depicted here produces the <b>first</b> line of the Balmer series, 
and for hydrogen (Z = 1) it results in a photon of wavelength 656 nm (red light). In 
<b>atomic</b> physics, the Rutherford–Bohr model or Bohr model, presented by Niels 
Bohr and ... Because the <b>electron</b> would lose <b>energy</b>, it would rapidly spiral 
inwards,&nbsp;... The <b>first</b> dictates that <b>no</b> two <b>electrons</b> in an <b>atom</b> may have ... of elements whose 
outermost <b>electrons</b> fall in the ith <b>shell</b>. ... common feature: their <b>highest</b>-<b>energy</b> 
<b>electrons</b> all belong to&nbsp;... The octet rule is a chemical rule of thumb that reflects the observation that 
elements tend to ... A chlorine <b>atom</b> has seven <b>electrons</b> in its outer <b>electron shell</b>, 
the <b>first</b> and second <b>shells</b> being filled ... (the “coordination <b>number</b>”) is often 4 or 
6; other coordination <b>numbers</b> up to a <b>maximum</b> of 8 were known, but less 
frequent. In <b>atomic</b> physics and quantum chemistry, the electron configuration is the 
distribution of ... An <b>atom&#39;s</b> nth electron <b>shell</b> can accommodate 2n<sup>2</sup> electrons, 
e.g. the <b>first</b> ... The <b>maximum number of electrons</b> that can be placed in a subshell 
is given by ... The configuration that corresponds to the lowest electronic <b>energy</b> 
is called&nbsp;... In quantum mechanics, the principal quantum <b>number</b> (symbolized n) is one of 
four quantum <b>numbers</b> assigned to all <b>electrons</b> in an <b>atom</b> to describe that 
<b>electron&#39;s</b> state. ... As n increases, the <b>electron</b> is also at a higher <b>energy</b> and is, 
therefore, less ... Therefore, the equations for the <b>first</b> three quantum <b>numbers</b> are 
all&nbsp;... The Franck–Hertz experiment was the <b>first</b> electrical measurement to clearly 
show the quantum nature of <b>atoms</b>, ... After the collision, the <b>electron</b> inside 
occupies a higher <b>energy level</b> with 4.9 <b>electron</b> volts (eV) more <b>energy</b>. ... the 
expectation that an <b>electron</b> could be bound to an <b>atom&#39;s</b> nucleus by any <b>amount</b> 
of <b>energy</b>.
two electrons
Electron shell