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Topic: Azimuthal quantum number

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Quantum number

Principal quantum number

Magnetic quantum number

Atomic electron configuration table

Atomic orbital

Electron configuration

Quantum mechanics

Hydrogen atom

Lp space

Molecular orbital

Spin quantum number

Atom

Angular momentum

Lyman series

Electron orbital

	Azimuthal Quantum Number
		The angular momentum quantum number, ''l'', governs the ellipticity of the probability cloud and the number of planar nodes going through the nucleus.
		The azimuthal quantum number was carried over from the Bohr model of the atom.
		The Bohr model was derived as was all of quantum theory from spectroscopic analysis of the atom in combination with the Rutherford atom.
	www.seattleluxury.com /encyclopedia/entry/azimuthal_quantum_number (862 words)

	Meteorite Book: Glossary Q
		QUANTUM NUMBERS – Numbers specifying the exact state of an electron in an atom (principal, angular, magnetic, and spin quantum numbers).
		The principal quantum number (n = 1, 2, 3...) indicates the distance between the electron and the nucleus.
		The average distance increases with n, and hence quantum states with different principal quantum numbers are said to belong to different shells.
	www4.nau.edu /meteorite/Meteorite/Book-GlossaryQ.html (533 words)

	Reference.com/Encyclopedia/Magnetic quantum number
		In atomic physics, the magnetic quantum number is the third of a set of quantum numbers (the principal quantum number, the azimuthal quantum number, the magnetic quantum number, and the spin quantum number) which describe the unique quantum state of an electron and is designated by the letter m.
		The four quantum numbers n, l, m, and s specify the complete and unique quantum state of a single electron in an atom called its wavefunction or orbital.
		The magnetic quantum number determines the energy shift of an atomic orbital due to an external magnetic field, hence the name magnetic quantum number (Zeeman effect).
	www.reference.com /browse/wiki/Magnetic_quantum_number (554 words)

	Atomic Evolution
		The second quantum number, better known as the azimuthal quantum number, l, can have integral values ranging from 0 to n-1 for each value of n.
		This quantum number defines the shape of the orbital.
		Each subshell is designated by a number (the value of n) and a letter (s, p, d, or f, corresponding to the value of l).
	library.thinkquest.org /C0110925/html/theatom/atomicstructure/atomicstructure18.html (205 words)

	Crystal Chemistry
		The orbital shape quantum number has the following values and designations for the shape of the probability region in which the electrons are most probably to be found.
		As the atomic number (number of protons) in an atom increases, the shells and sub-shells with lower energy are filled first.
		In a neutral atom, the number of protons and the number of electrons are equal, thus the number of positive charges is the same as the number of negative charges and the atom has no charge.
	www.tulane.edu /~sanelson/eens211/crystal_chemistry.htm (3283 words)

	Fundamentals of Atomic Theory
		Quantum mechanics is a theory that describes the behavior of the electrons in an atom.
		Quantum mechanics is based on the probability of finding an electron in a particular volume of space.
		The azimuthal quantum number, l, gives the shape of the volume of space the electron is likely to occupy and more specific information about its energy.
	www.chemprofessor.com /atomic.htm (2429 words)

	Reference.com/Encyclopedia/Azimuthal quantum number (Site not responding. Last check: 2007-10-11)
		The Azimuthal quantum number (or orbital/total angular momentum quantum number) symbolized as l (lower-case L) is a quantum number for an atomic orbital which determines its orbital angular momentum.
		The azimuthal quantum number is the second of a set of quantum numbers (the principal quantum number, following Spectroscopic notation, the azimuthal quantum number, the magnetic quantum number, and the spin quantum number) which describe the unique quantum state of an electron and is designated by the letter l.
		are quantum numbers corresponding to the magnitudes of the individual angular momenta.
	www.reference.com /browse/wiki/Angular_quantum_number (1019 words)

	Atom :: Web Articles ::
		The number of neutrons in an atom has no effect on which element it is. Each element can have numerous different atoms with the same number of protons and electrons, but varying numbers of neutrons.
		The principal quantum number is at the right of each row and the azimuthal quantum number is denoted by letter at top of each column.
		The principal quantum number is at the right of each row and the azimuthal quantum number is denoted by letter at top of each column.Each shell, numbered from the one closest to the nucleus (lowest in energy), can hold up to a specific number of electrons due to its differing sublevel and orbital capacity:
	www.webarticles.com /Science/Physics/Atom (1721 words)

	Atom - Article from FactBug.org - the fast Wikipedia mirror site (Site not responding. Last check: 2007-10-11)
		Atoms are generally classified by their atomic number, which corresponds to the number of protons in the atom.
		The mass number, atomic mass number, or nucleon number of an element is the total number of protons and neutrons in an atom of that element, because each proton or neutron essentially has a mass of 1 amu.
		Therefore, elements with the same number of valence electrons are grouped together in the periodic table of the elements.
	www.factbug.org /cgi-bin/a.cgi?a=902 (1943 words)

	Modern Theory of Atomic Structure, page 2
		The Magnetic Quantum Number is the third quantum number.
		The Magnetic quantum number is used to designate the number of orientations of the various types of orbitals on the three-dimensional axis system.
		Quantum Numbers are terms which were developed to aid in describing electron behavior according to the Schrodinger Wave Equation.
	www.bcpl.net /~kdrews/mtas/modern2.html (1095 words)

	QUANTUM NUMBERS-PRINCIPLE QUANTUM NUMBER-AZIMUTHAL QUANTUM NUMBER-MAGNETIC QUANTUM NUMBER-SPIN QUANTUM NUMBER
		These constant numbers are necessary to describe the position, spin, energy and orientation of an orbital in space.
		The values of principle quantum number are from 1 to n (where n is a positive whole number i.e.
		Magnetic quantum number indicates the orientation of an orbital in space in an applied magnetic field.
	www.citycollegiate.com /atomic_structureXIa.htm (174 words)

	[No title] (Site not responding. Last check: 2007-10-11)
		The SI unit of frequency is the Hertz (Hz).Heisenberg uncertainty principleA quantum mechanical principle due to Werner Heisenberg (1927) that, in its most common form, states that it is not possible to simultaneously determine the position and momentum of a particle.
		The energy of this quantum is equal to the product of the frequency of the radiation, symbolized by the Greek letter nu, , and a constant, h, now called Planck's constantprincipal quantum number(n) The quantum number that determines the size and (in hydrogen atoms) the energy of an orbital.
		Quantum numbers are used to describe the state of a confined electron, e.g.
	www.cdlilly.com /Vocabulary/VocabularyUnit2-AtomicStructure.doc (1537 words)

	General Chemistry Online: Glossary: Electrons in atoms
		The number of orbitals in a subshell is the same as the number of possible m
		quantum number has only two possible values, the Pauli principle says that a maximum of two electrons can occupy an atomic orbital- and these electrons must have opposite spins.
		The quantum number that determines the size and (in hydrogen atoms) the energy of an orbital
	antoine.frostburg.edu /chem/senese/101/electrons/glossary.shtml (1144 words)

	Re: regarding to pauli exclusion principle, potential+kinetic+shell struc. atom
		The lower the number, the lower the energy of the electron, and the closer the electron is, on average, to the nucleus.
		is equal to the azimuthal quantum number, to 180 degrees opposite.
		These three quantum numbers dictate the shapes and positions of the probability functions which we call orbitals rather than the classical orbits we would use for particles.
	www.madsci.org /posts/archives/dec2001/1008344171.Ch.r.html (1162 words)

	The improved Bohr's theory
		He coined a second l number which was called the secondary quantum number or the azimuthal quantum number.
		The number defined the shape, the oblateness of an orbit.
		The spin, magnetic quantum number is used for defining the direction of rotation.
	library.thinkquest.org /19662/low/eng/improved-bohr.html (696 words)

	Chapter 6: Electronic Structure of Atoms (Site not responding. Last check: 2007-10-11)
		In the the Bohr model the principle quantum number, n, was all that was needed to calculate the energy and the location of the electron because all of the shapes of the orbits were identical..a circle.
		Remember a quantum number is a whole number which is used to label the of an electron in an atom.
		The three quantum numbers that are obtained from the wavefunction are referred to as 'n' the principal quantum number, 'l' the azimuthal quantum number and 'm
	intro.chem.okstate.edu /1314F97/Chapter6/Fri1031971.html (2476 words)

	Wolfgang Pauli Summary
		In the case of the hydrogen atom with its single electron, the state of the atom was defined by a single quantum number representing the energy in the possible circular orbits of the electron.
		By postulating an additional set of quantum numbers Sommerfeld later extended Bohr's theory to cover the elliptical orbits in complex atoms, and a third set was later postulated to explain the atom in a magnetic field.
		According to quantum theory at the time, the loss of a beta particle by a radioactive particle should be accompanied by the loss of a discrete quantity of energy.
	www.bookrags.com /Wolfgang_Pauli (5217 words)

	Atomic Structure
		n: the principle quantum number, an integer value (1,2,3...) that is used to describe the quantum level, or shell, in which an electron resides.
		The principle quantum number is the primary number used to determine the amount of energy in an atom.
		Since the quantum numbers were discovered through the study of light and lines on an electromagnetic spectra, chemists identified the lines by their quality: sharp, principal, diffuse and fundamental.
	www.shodor.org /unchem/basic/atom (1742 words)

	Spin
		It will also depend on the quantum numbers which define the state of motion of the non-spinning electron in a way very similar to the energy differences connected with the rotation of the orbit in its own plane arising from the relativity variation of the electronic mass.
		As an illustration we may consider the energy levels corresponding to electronic orbits for which the principal quantum number is equal to three.
		Unless these transitions could me ascribed to the action of electric forces in the discharge which would perturb the electronic motion, their occurrence would be in disagreement with the correspondence principle, which only allows transitions in which the azimuthal quantum number changes by one unit and only J will remain unchanged.
	dbhs.wvusd.k12.ca.us /webdocs/Chem-History/Uhlenbeck-Goudsmit-spin.html (1642 words)

	glossary
		Atomic Number - number of protons in the nucleus of an atom.
		Primary, secondary, tertiary, and quaternary carbon - A classfication of carbon atoms determined by the number of non-hydrogen groups attached to the carbon atom.
		Quantum numbers -Quantum Numbers - parameters that describe the energy state of an electron in an atom
	people.uis.edu /gtram1/organic/glossary.htm (581 words)

	Electron Configuration Glossary
		Atomic number (Z) the number of protons in the nucleus.
		the quantum number that distinguishes orbitals of given n and 1-that is, of given energy and shape-but having a different orientation in space; the allowed values are the integers from -1 to +1
		the quantum number that refers to the two possible orientations of the spin axis of an electron; possible values are +1/2 and -1/2
	library.advanced.org /19957/eleconfig/glossary.html (306 words)

	Ch 201 Quiz 3 Name _____________________________________________________________
		The values of the principal quantum number and the azimuthal quantum number of the electrons in a 3d subshell are:
		In the quantum-mechanical model, the spatial orientation of an orbital is determined by quantum number(s)
		The principal quantum number of the first d subshell is: a) 1 b) 2 c) 3 d) 4
	www.sou.edu /chem/ch201w01/QUIZ3A.HTM (752 words)

	Chemistry 111 - The Structure of Atoms (Site not responding. Last check: 2007-10-11)
		The number of electrons in a neutral atom of an element is always equal to the ----- of the element.
		The mass number of an atom is the number of ----- in the atom.
		The difference between the mass number of an atom and the atomic number of the atom is always equal to -----.
	gemini.tntech.edu /~snorthrup/chem111/tutorials/chap5/chap5.html (1139 words)

	SparkNotes: SAT Chemistry: The Quantum Mechanical Model of the Atom
		Quantum numbers are basically used to describe certain aspects of the locations of electrons.
		Below are the four quantum numbers, showing how they are depicted and what aspects of electrons they describe.
		Orbitals that have the same principal quantum number, n, are part of the same electron shell.
	sparknotes.com /testprep/books/sat2/chemistry/chapter4section4.rhtml (794 words)

	Quantum Numbers and Electronic Structure
		According to the quantum mechanical model, the allowed energy levels of an electron are composed of one or more orbitals, and the distribution of electrons about the nucleus is determined by the number and kinds of energy levels that are occupied.
		The value of n gives an indication of the position of an electron in the energy level relative to the nucleus; the larger the value of n, the greater the average distance of an electron from the nucleus and the higher its energy.
		This quantum number may be more aptly named the orbital shape quantum number, since each orbital in a given type of sublevel (i.e., a given value of l) has the same "electron cloud" shape.
	www.miracosta.cc.ca.us /home/dlr/qnum.htm (1131 words)

	Steve's place - Atomic Structure
		The blocks of the periodic table are named after the azimuthal quantum number of the orbitals being filled (alkali metals are the s-block, the nonmetals are in the p-block, the transition metals are the d-block, the footnote is the f-block).
		The values of l run from 0 to n − 1, where n is the principal quantum number of the shell in question.
		The oxidation number of an atom in a molecule is basically the charge that the atom would have if the molecule were broken up into the ions that the atoms might 'like' to be.
	www.steve.gb.com /science/atomic_structure.html (4328 words)

	Grandinetti
		Now it turns out that if you consider an electron trapped inside a sphere (instead of in a one-dimensional box) it will have standing waves that are very similar to an electron bound to a positively charged nucleus by electrostatic attraction.
		Let's look at the quantum numbers needed to label the possible standing waves or states of an electron trapped by its electrostatic attraction to a positively charged nucleus.
		The spin quantum number shows up when the wave function of quantum mechanics is modified to include the effects of relativity.
	www.chemistry.ohio-state.edu /~grandine/teaching/Chem121/lectures/quantumNumbers/QuantumNumbers.html (714 words)

	quantum quantity concept from the Astronomy knowledge base
		For example, oxygen-16 has a mass number of sixteen, because it has eight protons and eight neutrons.
		azimuthal quantum number (3 facts) (k) - A measure of the minor axis of an elliptic orbital of an electron according to the Bohr-Sommerfeld theory.
		The term is whimsical, and has nothing to do with color in the conventional sense, any more than quark "flavor", which determines the weak force behavior of quarks, has anything to do with taste.
	www.site.uottawa.ca:4321 /astronomy/quantumquantity.html (688 words)

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