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Atoms atomic numbers

The rare earth (RE) ions most commonly used for applications as phosphors, lasers, and amplifiers are the so-called lanthanide ions. Lanthanide ions are formed by ionization of a nnmber of atoms located in periodic table after lanthanum from the cerium atom (atomic number 58), which has an onter electronic configuration 5s 5p 5d 4f 6s, to the ytterbium atom (atomic number 70), with an outer electronic configuration 5s 5p 4f " 6s. These atoms are nsnally incorporated in crystals as divalent or trivalent cations. In trivalent ions 5d, 6s, and some 4f electrons are removed and so (RE) + ions deal with transitions between electronic energy sublevels of the 4f" electroiuc configuration. Divalent lanthanide ions contain one more f electron (for instance, the Eu + ion has the same electronic configuration as the Gd + ion, the next element in the periodic table) but, at variance with trivalent ions, they tand use to show f d interconfigurational optical transitions. This aspect leads to quite different spectroscopic properties between divalent and trivalent ions, and so we will discuss them separately. [Pg.200]

Atom Atomic number Electron configuration Electronegativity (nuclear charge)... [Pg.19]

Electron, Atom, Atomic Number, Atomic Weight, Electronic Shell, Element, Ion, Isotope, Mass Number, Molecule, Neutron, Proton and Valence. [Pg.714]

Electron, atom, atomic number, atomic wt, electronic shell, element, ion, isotope, mass number, molecule, neutron, proton and valence 5 E71-E72... [Pg.596]

For any element, there is no set number of neutrons in the nucleus. For example, most hydrogen atoms (atomic number 1) have no neutrons. A small percentage, however, have one neutron, and a smaller percentage have two neutrons. Similarly, most iron atoms (atomic number 26) have 30 neutrons, but a small percentage have 29 neutrons. Atoms of the same element that contain different numbers of neutrons are isotopes of one another. [Pg.93]

Was this your answer The magnesium atom (atomic number 12) is found in group 2 and has two valence electrons to lose (see Figure 6.2). It therefore tends to form the 2+ ion. [Pg.189]

G RSS Query Highlighting G Atom-Atom Numbering li Bond-Change Marks... [Pg.396]

The most common constitutional descriptors are number of atoms atom number), number of bonds (- bond number), absolute and relative numbers of specific atom types count descriptors), absolute and relative numbers of single, double, tri-... [Pg.90]

Cluster Growth. - The lattice-growth method assumes that, starting with a pre-defined core, for a given cluster there is only a finite set of lattice positions that can be filled with additional atoms. A generalization of this approach is to let additional atoms take any positions as they want. Thus, from one or more structures for the cluster with N atoms, atom number N + 1 is placed at various randomly chosen positions. Subsequently, each of those structures is allowed to relax, and the structures of the lowest total energy are kept for the addition of a further atom. [Pg.265]

Chart A Kind of Atom Atomic Number Mass Number Isotope loNe Number of Protons Number of Electrons Number of Neutrons... [Pg.227]

Element Symbol Atomic Atomic number weight Element Symbol Atomic Atomic number weight ... [Pg.527]

Rare earth (RE) Gm atom (%) Atomic number Trivalent crystal radius (A) ... [Pg.284]


See other pages where Atoms atomic numbers is mentioned: [Pg.261]    [Pg.23]    [Pg.261]    [Pg.169]    [Pg.90]    [Pg.110]    [Pg.46]    [Pg.124]    [Pg.541]    [Pg.181]    [Pg.93]    [Pg.94]    [Pg.94]    [Pg.387]    [Pg.230]    [Pg.565]    [Pg.96]    [Pg.93]    [Pg.94]    [Pg.94]    [Pg.387]    [Pg.93]    [Pg.94]    [Pg.94]    [Pg.387]    [Pg.146]    [Pg.543]    [Pg.31]    [Pg.57]    [Pg.367]    [Pg.173]    [Pg.93]    [Pg.94]   
See also in sourсe #XX -- [ Pg.87 , Pg.105 , Pg.106 , Pg.107 , Pg.126 , Pg.128 ]




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ATOMIC MASS NUMBER (A)

Aluminum atomic number

Americium, 433 Atomic number

Amides Atomic number

Amorphous atomic number, dependence

Angular Atomic number

Atom coordination number

Atom motions residue number

Atom number density

Atom numbering, writing reaction

Atom numbering, writing reaction mechanisms

Atom quantum numbers

Atomic Number Effect

Atomic Numbers and X-ray Spectra

Atomic Orbitals and Their Quantum Numbers

Atomic and Mass Numbers

Atomic bomb number

Atomic magic numbers

Atomic mass number

Atomic nucleus number

Atomic number

Atomic number

Atomic number absorption coefficient

Atomic number and the sequence rule

Atomic number bismuth)

Atomic number conservation

Atomic number contrast

Atomic number defined

Atomic number definition

Atomic number degenerate

Atomic number designation

Atomic number diffracting power

Atomic number electron affinity

Atomic number factor

Atomic number first ionization energy

Atomic number hybridization

Atomic number hybridized

Atomic number imaging

Atomic number imaging supported catalysts

Atomic number imaging using STEM

Atomic number ionization energy

Atomic number isotopes

Atomic number isotopes and

Atomic number linear combinations

Atomic number lobes

Atomic number nodal planes

Atomic number nuclides

Atomic number of elements

Atomic number overlap

Atomic number radioactive decay and

Atomic number relationship with spin quantum

Atomic number types

Atomic number, 115 average rate

Atomic number, discovery

Atomic number, of atoms

Atomic number, xviii

Atomic numbering

Atomic numbering

Atomic numbers group trends

Atomic numbers solidification points

Atomic numbers, table

Atomic numbers/weights tabulated

Atomic orbital quantum numbers

Atomic orbitals quantum number combinations, Table

Atomic orbitals quantum numbers

Atomic orbitals quantum numbers and

Atomic orbitals relationship between quantum numbers

Atomic orbits hydrogen atom quantum numbers

Atomic states, number

Atomic structure numbers, isotopes

Atomic, number weight

Atomic: number, 177 volume

Atomic: number, 177 volume weights

Atoms and Quantum Numbers

Atoms calculating number

Atoms mass number

Atoms number

Atoms number

Atoms, nucleus number

Atoms: atomic number Quantum mechanics

Atoms: atomic number charges

Atoms: atomic number through space, 74-75 stability

Beryllium, Atomic Number

Carbon atoms numbering

Carbon atoms, number

Carbon atoms, number surfactants

Carbon: atomic number

Carbon: atomic number color, 6 compounds

Carbon: atomic number electrons

Charge atomic number and

Charge number atoms

Chemical Symbols Atomic and Mass Numbers

Chemical bonding atomic-number dependence

Conjugated dienes numbering carbon atoms

Converting grams to number of atoms

Coordination compounds effective atomic number rule

Coordination number surface atoms

Coordination number, of surface atoms

Cyclobutane, numbering atoms

Cyclohexane, numbering atoms

Double bond Effective atomic number

Effective atomic number

Effective atomic number (also

Effective atomic number Rule exceptions

Effective atomic number binary metal carbonyl

Effective atomic number concept

Effective atomic number from ionization energy

Effective atomic number nuclear charge

Effective atomic number rule

Effective atomic number rule (EAN

Effective atomic number rule organometallic compounds

Effective atomic number rule violation

Elements atomic number and

Elements atomic number identifying

Elements atomic numbers

Elements highest atomic numbers

Equating the Number of Atoms

Equivalent atomic number , transition

Excited atoms, number

Factor groups atomic number

Fluorine, Atomic Number

Group numbers, atoms

Helium atom quantum numbers

Hexafluorides atomic-number dependence

Hydrogen atom quantum numbers

Hydrogen atomic number

Hydrogen atoms, oxidation number

Hydrogen-like atom quantum numbers

Hydrogen: abundance 49 atomic number

Imidazole group numbering of ring atoms

Ionic radii atomic number

Ionisation Energy and Number of Excited Atoms

Isotopes atomic mass/number

Lanthanides atomic numbers

Lattice parameters atomic number

Listed by Name, Symbol, and Atomic Number

Mass number of atom

Mass, Avogadros Number, and the Atomic Nucleus

Measuring the number of total surface metal atoms by chemisorption

Melting temperature dependence atomic number

Metallic element of atomic number

Molecular structure atomic number

Molecule numbering atoms

Moles and Number of Atoms

Nitrogen atom, number

Nitrogen atomic number

Nuclei with Atomic Number Greater Than

Number of Atoms Packed in First Coordination Sphere around Metal Ion

Number of atoms

Number of carbon atoms

Number of exchangeable atoms

Number of surface atoms

Number of total surface metal atoms

Numbering hetero atoms

Numbering skeletal atoms

Numbering the atoms of a molecule

One-Electron Atom Quantum Numbers

Organic materials atomic number

Oxidation Numbers of Atoms

Oxygen atomic number

Oxygen atoms, oxidation number

Periodic table atomic numbers

Periodic table of the elements atomic number

Polynuclear compounds numbering central atoms

Predicted atomic magic numbers

Protons atomic number

Protons atomic number and

Quantum Numbers of Multielectron Atoms

Quantum Numbers of an Atomic Orbital

Quantum numbers and atomic wave functions

Quantum numbers multielectron atoms

Quantum numbers, atomic

Quantum numbers, atomic permitted values

Quantum numbers, relativistic atomic orbital

Radioactivity atomic number

Radius variation with atomic number

Relativistic effects atomic-number dependence

Residence time atomic number

Scanning transmission electron microscopy atomic number imaging

Sidgwick effective atomic number

Stability constants plotted against atomic number

Stereochemistry, atom numbering

Sugars carbon atom numbering

Syntheses Classified by Number of Ring Atoms in Each Compound

The Atomic Number, Dmitri

The Effective Atomic Number (EAN) Rule

The Number of Atoms in a Formula

The effective atomic number concept

Uranium atom, coordination number

Uranium: atomic number

Uranium: atomic number 106 nucleus

Uranium: atomic number radioactive decay

Valence electron/atom number

Valence electron/atom number ratio

What is the atomic number of an element

Why Do Hydration Heats of Transition-Metal Ions Vary Irregularly with Atomic Number

Z (atomic number

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