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en.wikipedia.org/wiki/Atomic_orbital

In quantum mechanics, an atomic orbital is a mathematical function that describes the wave-like behavior of either one electron or a pair of electrons in an atom. This function can be used to calculate the probability of finding any electron ... Each such orbital can be occupied by a maximum of two electrons, each with its own ...

www.chem4kids.com/files/atom_orbital.html

... second shell. Electrons can spin around the nucleus of an atom in any direction ... A shell is sometimes called an energy level. 3. Shells are ... Orbitals of an atom with letter designations ... Not all shells and suborbitals hold the same number of electrons. For the ... Written out the long way, it looks like 1s2 2s2 2p6 3s2 3p2.

www.middleschoolchemistry.com/lessonplans/chapter4/lesson3

They can think of electrons as being in the different energy levels like concentric spheres around the nucleus. Since it is very difficult to show these spheres, the energy levels are typically ... Have students look at the Periodic table of the elements 1–20 they used in ... There can be a maximum of two electrons in each orbital.

archives.library.illinois.edu/erec/University%20Archives/1505050/Rogers/Text5/Tx53/tx53.html

Each principal energy level can contain up to 2n2 electrons, where n is the number ... (Like many models, this explanation is an oversimplification, but for the ... A set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. ... The three p orbitals are more or less dumbbell-shaped, with the nucleus at the ...

socratic.org/chemistry/the-electron-configuration-of-atoms/arrangement-of-electrons-in-orbitals-spd-and-f

The number denotes the energy level of the electron in the orbital. ... If you look carefully, you will notice that a 1s orbital has very little electron density ... A 2s orbital is similar to a 1s orbital, but it has sphere of electron density ... It should be noted, however that all orbitals hold a maximum of two electrons, regardless of type.

www.ck12.org/book/CK-12-Physical-Science-Concepts-For-Middle-School/section/2.43

Oct 31, 2012 ... For example, energy level I can hold a maximum of two electrons, and ... in the Figure below, some orbitals are shaped like spheres (S orbitals) ...

www.brooklyn.cuny.edu/bc/ahp/SDPS/SD.PS.electrons.html

a p orbital. Atomic orbitals have different shapes. All s are spherical. ... All p orbitals are shaped somewhat like a dumbbell, with the thin, pinched region of ... No matter what its shape, an orbital can only hold a maximum of two electrons at any time. ... Each of these orbitals can hold 2 electrons, so a total of 8 electrons can be ...

chemphys.armstrong.edu/P1/AtmStr.htm

Atoms consist of three subatomic particles: protons, neutrons, and electrons. ... Shells are numbered as n=1,2,3,4, etc. and increase in size and energy as they get ... Each subshell has a maximum number of electrons which it can hold: s - 2 ... An s orbital found in a s subshell is spherical, p orbitals found in p subshells are ...

www2.saplinglearning.com/sites/default/files/DynamicChemistry_eBook3-4.pdf

nucleus and have less energy than an electron in an energy level 2 orbital. 3.4 - Electron Arrangements. Figure 3.4-1 All s-orbitals are sphere shaped. .... that like the d-block, the f-block does not have principle energy levels that directly ... The Pauli exclusion principle states that each orbital can hold a maximum of two.

chemistry.stackexchange.com/questions/8598/what-are-the-maximum-number-of-electrons-in-each-shell

First, we look at the n=1 shell (the first shell). ... s-orbitals can hold 2 electrons, the p-orbitals can hold 6 electrons. ... An easy way to visualize this is like this: ... the s subshell of any energy level consists of spherical orbitals.