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Function describing an electron in an atom
In quantum mechanics, an atomic orbital is a function describing the location and wave-like behavior of an electron in an atom. This function describes
Atomic_orbital
Mixing (superposition) of atomic orbitals
In chemistry, orbital hybridisation (or hybridization) is the concept of mixing atomic orbitals to form new hybrid orbitals (with different energies,
Orbital_hybridisation
Wave-like behavior of an electron in a molecule
region. The terms atomic orbital and molecular orbital were introduced by Robert S. Mulliken in 1932 to mean one-electron orbital wave functions. At
Molecular_orbital
Method for describing the electronic structure of molecules using quantum mechanics
three main requirements for atomic orbital combinations to be suitable as approximate molecular orbitals. The atomic orbital combination must have the correct
Molecular_orbital_theory
Visual tool in quantum chemistry
orbital diagrams are diagrams of molecular orbital (MO) energy levels, shown as short horizontal lines in the center, flanked by constituent atomic orbital
Molecular_orbital_diagram
Technique in quantum chemistry
which atomic orbital is combined in the term. The coefficients are the weights of the contributions of the n atomic orbitals to the molecular orbital. The
Linear combination of atomic orbitals
Linear_combination_of_atomic_orbitals
Smallest unit of a chemical element
from the original on 7 December 2006. Manthey, David (2001). "Atomic Orbitals". Orbital Central. Archived from the original on 10 January 2008. Herter
Atom
Association of atoms to form chemical compounds
which includes orbital hybridization and resonance, and molecular orbital theory, which includes the linear combination of atomic orbitals and ligand field
Chemical_bond
Molecular orbital which weakens chemical bonding
original atomic level and one higher. The orbital which is in a lower energy state than the orbitals of the separate atoms is the bonding orbital, which
Antibonding_molecular_orbital
Molecular orbital
molecular orbital). According to molecular orbital theory, molecular orbitals are often modeled by the linear combination of atomic orbitals. In a simple
Non-bonding_orbital
Mode of arrangement of electrons in different shells of an atom
molecule has a different orbital structure. The molecular orbitals are labelled according to their symmetry, rather than the atomic orbital labels used for atoms
Electron_configuration
Bonding orbital used in quantum chemistry
basis atomic orbitals (AO) and molecular orbitals (MO): Atomic orbital → NAO → NHO → NBO → NLMO → Molecular orbital Natural (localized) orbitals are used
Natural_bond_orbital
Quantum number denoting orbital angular momentum
quantum number for an atomic orbital that determines its orbital angular momentum and describes aspects of the angular shape of the orbital. The azimuthal quantum
Azimuthal_quantum_number
Covalent chemical bond
overlapping of atomic orbitals. The concept of sigma bonding is extended to describe bonding interactions involving overlap of a single lobe of one orbital with
Sigma_bond
English electronic music duo
Additionally, the cover art on three of their albums showcase stylised atomic orbitals. Orbital have been critically and commercially successful, known particularly
Orbital_(band)
Set of functions used to represent the electronic wave function
basis function and atomic orbital are sometimes used interchangeably, although the basis functions are usually not true atomic orbitals. Within the basis
Basis_set_(chemistry)
Quantum mechanical property
electron in a specific atomic orbital, which are functions representing 3 dimensional regions around the nucleus. The description of orbital motion as probability
Orbital_motion_(quantum)
Triatomic molecule
hybridized in which the 2s atomic orbital and the three 2p orbitals of oxygen are hybridized to form four new hybridized orbitals which then participate in
Chemical_bonding_of_water
Theory of molecular orbitals by Erich Hückel
molecular orbital theory, proposed by Erich Hückel in 1930, is a simple method for calculating molecular orbitals as linear combinations of atomic orbitals. The
Hückel_method
Model of electronic band structures of solids
ionization energy corresponding to the chosen atomic orbital and U is the energy shift of the orbital as a result of the potential of neighboring atoms
Tight_binding
One of two foundational theories of quantum chemistry
orbital (MO) theory, that were developed to use the methods of quantum mechanics to describe chemical bonding. It focuses on how the atomic orbitals of
Valence_bond_theory
Type of chemical bond
orbital on one atom overlap with two lobes of an orbital on another atom, and in which this overlap occurs laterally. Each of these atomic orbitals has
Pi_bond
Tabular arrangement of the chemical elements
new electron in a 2p orbital; carbon (1s2 2s2 2p2) fills a second 2p orbital; and with nitrogen (1s2 2s2 2p3) all three 2p orbitals become singly occupied
Periodic_table
Core of an atom composed of nucleons
which binds electrons in atoms. Some resemblance to atomic orbital models may be seen in a small atomic nucleus like that of helium-4, in which the two protons
Atomic_nucleus
Mathematical function
orbitals (also known as Gaussian type orbitals, GTOs or Gaussians) are functions used as atomic orbitals in the linear combination of atomic orbitals
Gaussian_orbital
Atoms with a single valence electron, so they behave like hydrogen
see that in the S1/2 orbital (k = −1), the top two components of Ψ have zero orbital angular momentum like Schrödinger S orbitals, but the bottom two components
Hydrogen-like_atom
Chemical bond by sharing of electron pairs
molecular orbital theory, a linear combination of atomic orbitals is performed first, followed by filling of the resulting molecular orbitals with electrons
Covalent_bond
Principal energy levels in atomic physics
In chemistry and atomic physics, an electron shell may be thought of as an orbit that electrons follow around an atom's nucleus. The closest shell to
Electron_shell
Type of chemical bond
involved atomic orbital overlap six lobes of the other involved atomic orbital. This overlap leads to the formation of a bonding molecular orbital with three
Phi_bond
Concentration of chemical orbitals on adjacent atoms
orbital overlap is that, the greater the overlap between orbitals, the greater the bond strength. Linus Pauling explained the importance of orbital overlap
Orbital_overlap
Quantum state with all observables independent of time
or energy eigenket. It is very similar to the concept of atomic orbital and molecular orbital in chemistry, with some slight differences explained below
Stationary_state
Aspect of quantum chemistry
"empty p orbital"; the symbols a for "acceptor" or "atomic" orbital and n* for unoccupied nonbonding orbital are also used), π* (pi antibonding), and σ* (sigma
Localized_molecular_orbitals
Approximation method in quantum physics
one-electron wave functions known as spin-orbitals. For an atomic orbital calculation, these are typically the orbitals for a hydrogen-like atom (an atom with
Hartree–Fock_method
Universal symbol of Atheism
atom, which erroneously showed the orbital paths of electrons around the central nucleus, and not on the atomic orbitals. It resembles the authoritative
Atomic_whirl
Elementary particle with negative charge
behavior of a bound electron is described by a function called an atomic orbital. Each orbital has its own set of quantum numbers such as energy, angular momentum
Electron
Function used in quantum chemistry
orbitals (STOs) or Slater-type functions (STFs) are functions used as atomic orbitals in the linear combination of atomic orbitals molecular orbital method
Slater-type_orbital
Study of electromagnetic radiation absorbed/emitted by atoms
within an atom. Atomic orbitals are quantized, meaning they exist as defined values instead of being continuous (see: atomic orbitals). Electrons may
Atomic_spectroscopy
Set of adjacent groups
A block of the periodic table is a set of elements unified by the atomic orbitals their valence electrons or vacancies lie in. The term seems to have
Block_(periodic_table)
Describes the range of energies of an electron within the solid
band and the narrow embedded TB d-bands. The radial functions of the atomic orbital part of the Wannier functions are most easily calculated by the use
Electronic_band_structure
Field of physics that studies the atom
Atomic physics is the field of physics that studies atoms as an isolated system of electrons and an atomic nucleus. Atomic physics typically refers to
Atomic_physics
Atomic model introduced by Niels Bohr in 1913
line frequencies with the orbits of electrons in his atoms. The connection he adopted associated the atomic electron orbital angular momentum with the
Bohr_model
Format for notating atoms and molecules
Spectroscopic notation provides a way to specify atomic ionization states, atomic orbitals, and molecular orbitals. Spectroscopists customarily refer to the
Spectroscopic_notation
Topics referred to by the same term
An electron orbital may refer to: An atomic orbital, describing the behaviour of an electron in an atom A molecular orbital, describing the behaviour
Electron_orbital
Quantum-mechanical explanation of chemical bonding
chemistry, the bonding orbital is used in molecular orbital (MO) theory to describe the attractive interactions between the atomic orbitals of two or more atoms
Bonding_molecular_orbital
System of connected p-orbitals with delocalized electrons in a molecule
single spherical lobe of a hydrogen 1s orbital). Each atomic orbital contributes one electron when the orbitals overlap pairwise to form two-electron σ
Conjugated_system
Measure of the size of an atom
unoccupied s-orbital. Because an atom's s-orbital electrons are typically farthest from the nucleus, this results in a significant increase in atomic radius
Atomic_radius
Emissions from unstable atomic nuclei
fully ionised atom – the electron is emitted into the "K-shell" (1s atomic orbital), which cannot occur for neutral atoms in which all low-lying bound
Radioactive_decay
within the atomic orbitals such that no more than two electrons are assigned to any one orbital; this requirement profoundly affects the atomic properties
History_of_atomic_theory
Notation for conserved quantities in physics and chemistry
angular nodes present in an orbital. For example, for p orbitals, ℓ = 1 and thus the amount of angular nodes in a p orbital is 1. The magnetic quantum
Quantum_number
Inner-shell electron of an atom
electrons can be described with atomic orbital theory.[citation needed] In atoms with a single electron the energy of an orbital is determined exclusively by
Core_electron
Type of chemical bond
chemical bond, in which four lobes of an atomic orbital on one atom overlap four lobes of an atomic orbital on another atom. This overlap leads to the
Delta_bond
Chemistry based on quantum physics
from two s-orbitals, an s-orbital and a p-orbital, or two p-orbitals. A pi (π) bond is formed from a side-to-side overlap of two p-orbitals. The pi bond
Quantum_chemistry
Rule in geometry of individual molecules
relationship between the orbital hybridization and the electronegativities of substituents. The rule was stated by Henry A. Bent as follows: Atomic s character concentrates
Bent's_rule
Measurement in atomic physics
the mean radius of the orbital for hydrogen, and ⟨ r ⟩ Z {\displaystyle \langle r\rangle _{Z}} is the mean radius of the orbital for a proton configuration
Effective_nuclear_charge
Topics referred to by the same term
Look up orbital in Wiktionary, the free dictionary. Orbital may refer to: Atomic orbital Molecular orbital Hybrid orbital Orbit Earth orbit Orbit (anatomy)
Orbital
Atom of the element hydrogen
electron's wave function ("orbital") for the various possible quantum-mechanical states, thus explaining the anisotropic character of atomic bonds. The Schrödinger
Hydrogen_atom
System of measurement
'atomic units', defined as follows: Unit of length, a H = h 2 / 4 π 2 m e 2 {\displaystyle a_{\text{H}}=h^{2}\,/\,4\pi ^{2}me^{2}} , on the orbital
Atomic_units
Type of lepton that orbits an atom on its own
is an electron that occupies an orbital of an atom singly, rather than as part of an electron pair. Each atomic orbital of an atom (specified by the three
Unpaired_electron
Method in computational chemistry
the basis functions in the molecular orbital are Cμi for the μ'th basis function in the i'th molecular orbital, the density matrix terms are: D μ ν =
Mulliken_population_analysis
that a planet does. Instead of classical orbits, electrons are said to inhabit atomic orbitals. An orbital is the "cloud" of possible locations in which
History_of_quantum_mechanics
Soviet chemist (1900–1972)
theoretical justification of the empirical Madelung rule for the ordering of atomic orbital energies. This rule is therefore sometimes called Klechkovsky's rule
Vsevolod_Klechkovsky
Organic molecule containing a neutral carbon atom with 3 unpaired valence electrons
molecular orbital is essentially the carbon 1s atomic orbital, and the 2σ is the C–H bonding orbital formed by overlap of a carbon sp hybrid orbital with the
Carbyne
Topics referred to by the same term
Wiktionary, the free dictionary. 1S or 1s may refer to: 1s electron, in an atomic orbital Sabre (computer system)'s IATA code 1S, a series of Toyota S engines
1S
Different states of quantum systems
as a circular orbit around an atom, where the number of wavelengths gives the type of atomic orbital (0 for s-orbitals, 1 for p-orbitals and so on). Elementary
Energy_level
Classification of electrocyclic reactions by how end groups are rotated
counter-clockwise). In disrotatory mode, the atomic orbitals of the end groups turn in opposite directions (one atomic orbital turns clockwise and the other counter-clockwise)
Conrotatory_and_disrotatory
of atomic orbital a {\displaystyle a} in molecular orbital r {\displaystyle r} , and E r {\displaystyle E_{r}} is the energy of molecular orbital r {\displaystyle
Klopman–Salem_equation
Molecule containing main group elements with more than eight valence electrons
molecular orbital framework, was proposed. The 3c–4e bond is described as three molecular orbitals formed by the combination of a p atomic orbital on the
Hypervalent_molecule
Topics referred to by the same term
California Electron excitation, the transfer of an electron to a higher atomic orbital More generally, the transfer of energy to a normal mode Excitement (film)
Excitation
Method of labeling atomic orbitals
and orbital used to generate them. For example, CuKα X-rays are emitted from the K orbital of copper. X-ray absorption is reported as which orbital absorbed
X-ray_notation
Energy needed to remove an electron
electron shares a doubly occupied p-orbital with an electron of opposing spin. The two electrons in the same orbital are closer together on average than
Ionization_energy
Chemical substance not composed of simpler ones
wavelengths yields one or more atomic orbitals, which describe each the electron's charge distribution at that energy level. Every orbital can hold a pair of electrons
Chemical_element
Number describing angular momentum along an axis
of the orbital angular momentum that lies along a given axis, conventionally called the z-axis, so it describes the orientation of the orbital in space
Magnetic_quantum_number
Study of matter-light interactions at small scales
the structure of these atoms and molecules, physicists use atomic orbital and molecular orbital theory to understand the electronic structure. Notably in
Atomic, molecular, and optical physics
Atomic,_molecular,_and_optical_physics
Atomic model
and solid-state and condensed matter physics, the so-called atomic orbitals, or spin-orbitals, as they appear in textbooks on quantum physics, are often
Cubic_harmonic
Principle of atomic physics
that occupy the same orbital must have different spins (+1⁄2 and −1⁄2). Passing from one element to another of the next higher atomic number, one proton
Aufbau_principle
Symmetry of molecules of chemical compounds
Atomic orbital symmetry follows from the angular part of the wave function which increases in complexity in the series s,p,d,f,... so that s orbitals
Molecular_symmetry
Important atomic emission spectra
replaced by quantum mechanics in which the electron occupies an atomic orbital rather than an orbit, but the allowed energy levels of the hydrogen atom remained
Hydrogen_spectral_series
Chemical element with atomic number 14 (Si)
(/ˈsɪl.ɪ.kən/, SILL-ih-kən) is a chemical element; it has symbol Si and atomic number 14. It is a hard, brittle crystalline solid with a blue-grey metallic
Silicon
Subatomic particle with positive charge
muon is 200 times heavier than an electron, resulting in a smaller atomic orbital, it is much more sensitive to the proton's charge radius and thus allows
Proton
X-rays characteristic of specific elements
different electron states which exist in an atom are usually described by atomic orbital notation, as is used in chemistry and general physics. However, X-ray
Characteristic_X-ray
Revised theory in chemical bonding
linear combinations of either atomic orbitals, delocalized atomic orbitals (Coulson-Fischer theory), or even molecular orbital fragments. Although this is
Modern_valence_bond_theory
Strong coupling between two cations through an intermediary anion
filled orbital and one with a half-filled orbital will be ferromagnetic. The coupling between an ion with either a half-filled or filled orbital and one
Superexchange
Branch of chemistry
equations for complex atomic systems began to be a realizable objective. In the early 1950s, the first semi-empirical atomic orbital calculations were performed
Computational_chemistry
routinely provides: Total and partial energies. Atomic forces. Stress tensor. Electric dipole moment. Atomic, orbital, and bond populations (Mulliken). Electron
SIESTA_(computer_program)
Chemical element with atomic number 85 (At)
carbon's one s atomic orbital and three p orbitals hybridize to give four new orbitals shaped as intermediates between the original s and p orbitals. "Unfortunately
Astatine
Change in the position of an object
of heat away from the body as a feeling of cold. Within the standard atomic orbital model, electrons exist in a region around the nucleus of each atom.
Motion
Weak, attractive magnetism possessed by most elements and some compounds
electrons in the material, so most atoms with incompletely filled atomic orbitals are paramagnetic, although exceptions such as copper exist. Due to
Paramagnetism
Point with minimum wave amplitude
where the wavefunction for an atomic orbital is equal to zero, while the angular node is a flat plane. Molecular orbitals are classified according to bonding
Node_(physics)
Quantum mechanical effect
critical ratio of internuclear distance to mean radial extension of the atomic orbital. The detailed calculation, including evaluation of the above integrals
Exchange_interaction
Chemical element with atomic number 8 (O)
Oxygen is a chemical element; it has the symbol O and its atomic number is 8. It is a member of the chalcogen group in the periodic table. It is highly
Oxygen
Study involving matter and electromagnetic radiation
referred to as atomic spectral lines, are due to electronic transitions of outer shell electrons as they rise and fall from one electron orbit to another
Spectroscopy
Description of continuous random distribution
measure – Concept in mathematics Uses as position probability density: Atomic orbital – Function describing an electron in an atom Home range – Area in which
Probability_density_function
Theories of quantum chemistry explained via relativistic mechanics
appear yellow to human eyes. The electronic transition from the 5d orbital to the 6s orbital is responsible for this absorption. An analogous transition occurs
Relativistic quantum chemistry
Relativistic_quantum_chemistry
Danish physicist (1885–1962)
that the electrons revolve in stable orbits around the atomic nucleus but can jump from one energy level (or orbit) to another. Although the Bohr model
Niels_Bohr
Topics referred to by the same term
principal quantum number, the first of a set of quantum numbers of an atomic orbital n, an electron density, the measure of the probability of an electron
N_(disambiguation)
Relativistic interaction in quantum physics
A key example of this phenomenon is the spin–orbit interaction leading to shifts in an electron's atomic energy levels, due to electromagnetic interaction
Spin–orbit_interaction
Topics referred to by the same term
the state and the most populous city of Brazil sp orbitals, in physics, an instance of atomic orbital hybridisation Self-propelled (disambiguation) Soft-point
SP
Mathematical function used to approximate atomic orbitals in quantum chemistry
electron in its lowest energy level, or 1s orbital, within an atom. Such functions are a type of Slater-type orbital (STO). They offer a balance between accuracy
1s_Slater-type_function
Idealised model of a particle in physics
particle wavepacket always occupies a nonzero volume. For example, see atomic orbital: The electron is an elementary particle, but its quantum states form
Point_particle
Equations in quantum chemistry
applies to closed-shell molecules or atoms where all molecular orbitals or atomic orbitals, respectively, are doubly occupied. This is generally called
Roothaan_equations
ATOMIC ORBITAL
ATOMIC ORBITAL
Boy/Male
Indian
An Atom's Warrior
Boy/Male
Czechoslovakian
Boy/Male
Hindu
Atom
Male
Japanese
(富) Japanese name TOMIO means "treasured man."
Girl/Female
Hindu
Atom
Boy/Male
Tamil
Atom
Boy/Male
African, Australian, Finnish, Japanese
The People; Twin; Happy Child
Boy/Male
Hindu
Atom
Girl/Female
Tamil
Atom
Girl/Female
Indian
Atom
Boy/Male
Hindu
The soul
Boy/Male
Anglo Saxon
Horrible.
Girl/Female
British, English, French, Italian
Lovely
Boy/Male
Hindu, Indian
Relating to the Soul
Boy/Male
Tamil
Atom
Girl/Female
Hebrew
Strong as an oak.
Boy/Male
Gujarati, Hindu, Indian
Topic; Subject
Girl/Female
Tamil
Anu Keerthi | அநà¯Â கிரதீ Â
Atom
Anu Keerthi | அநà¯Â கிரதீ Â
Girl/Female
Gujarati, Hindu, Indian, Marathi, Telugu
Sunrise; Comic
Male
Hungarian
Pet form of Hungarian Tamás, TOMI means "twin."
ATOMIC ORBITAL
ATOMIC ORBITAL
Girl/Female
Assamese, Bengali, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Sindhi, Telugu
Sight
Surname or Lastname
English
English : patronymic from a pet form of Hugh.
Girl/Female
Arabic, Muslim
Victory
Boy/Male
Bengali, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
One who has Conquered Everything
Surname or Lastname
English
English : metonymic occupational name for a maker of garlands or chaplets, perhaps also a habitational name from a house sign. The word is first attested in the 14th century, from Old French, and appears to be of Germanic origin.English : habitational name from a minor place, such as Garland in Chulmleigh, Devon, named from Old English gÄra ‘triangular piece of land’ (see Gore) + land ‘cultivated land’, ‘estate’.
Male
Greek
(Ωκεανός) Greek name OKEANOS means "ocean." In mythology, this is the name of a Titan, son of Uranus and Gaia, the personification of the world-ocean once believed to encircle the world.
Boy/Male
British, English
From the Ox Farm
Girl/Female
Arabic, Muslim
Unique; Incomparable
Girl/Female
American, British, English, French, German
Joyous; Medieval Male Name Adopted as a Feminine Name
Girl/Female
American, British, Christian, English, French
Sky-blue
ATOMIC ORBITAL
ATOMIC ORBITAL
ATOMIC ORBITAL
ATOMIC ORBITAL
ATOMIC ORBITAL
a.
Relating to the etymon; as, an etymic word.
n.
A tonic element or letter; a vowel or a diphthong.
a.
Pertaining to, or characterized by, aptotes; uninflected; as, aptotic languages.
n.
An Adonic verse.
n.
One who holds to the atomic philosophy or theory.
v. t.
To reduce to atoms.
a.
Produced without sexual union; as, agamic or unfertilized eggs.
n.
An atom; a mite; a pigmy.
a.
Pertaining to azote, or nitrogen; formed or consisting of azote; nitric; as, azotic gas; azotic acid.
a.
Containing two atoms.
a.
Unaccented; as, an atonic syllable.
n.
Nomic spelling.
a.
Having two replaceable atoms or radicals.
n.
The doctrine of atoms. See Atomic philosophy, under Atomic.
a.
Aeolian, 1; as, the Aeolic dialect; the Aeolic mode.
v. t.
To reduce to atoms, or to fine spray.
a.
Alt. of Atomical
a.
Of or pertaining to atoms.
a.
Characterized by atony, or want of vital energy; as, an atonic disease.
a.
Of or pertaining to atoms; relating to atomism.