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  2. Spectroscopic notation - Wikipedia

    en.wikipedia.org/wiki/Spectroscopic_notation

    This notation is used to specify electron configurations and to create the term symbol for the electron states in a multi-electron atom. When writing a term symbol, the above scheme for a single electron's orbital quantum number is applied to the total orbital angular momentum associated to an electron state. [4]

  3. Term symbol - Wikipedia

    en.wikipedia.org/wiki/Term_symbol

    The superscript 3 indicates that the spin multiplicity 2S + 1 is 3 (it is a triplet state), so S = 1; the letter "P" is spectroscopic notation for L = 1; and the subscript 0 is the value of J (in this case J = L − S).

  4. Hund's rules - Wikipedia

    en.wikipedia.org/wiki/Hund's_rules

    As an example, consider the ground state of silicon.The electron configuration of Si is 1s 2 2s 2 2p 6 3s 2 3p 2 (see spectroscopic notation).We need to consider only the outer 3p 2 electrons, for which it can be shown (see term symbols) that the possible terms allowed by the Pauli exclusion principle are 1 D , 3 P , and 1 S.

  5. List of character tables for chemically important 3D point ...

    en.wikipedia.org/wiki/List_of_character_tables...

    For each non-linear group, the tables give the most standard notation of the finite group isomorphic to the point group, followed by the order of the group (number of invariant symmetry operations). The finite group notation used is: Z n : cyclic group of order n , D n : dihedral group isomorphic to the symmetry group of an n –sided regular ...

  6. Molecular term symbol - Wikipedia

    en.wikipedia.org/wiki/Molecular_term_symbol

    In molecular physics, the molecular term symbol is a shorthand expression of the group representation and angular momenta that characterize the state of a molecule, i.e. its electronic quantum state which is an eigenstate of the electronic molecular Hamiltonian. It is the equivalent of the term symbol for the atomic case.

  7. Molecular symmetry - Wikipedia

    en.wikipedia.org/wiki/Molecular_symmetry

    The following table lists many of the point groups applicable to molecules, labelled using the Schoenflies notation, which is common in chemistry and molecular spectroscopy. The descriptions include common shapes of molecules, which can be explained by the VSEPR model .

  8. These are the pedophile symbols you need to know to protect ...

    www.aol.com/news/2016-04-26-these-are-the...

    Click through the see images of the symbols: Show comments. Advertisement. Advertisement. Holiday Shopping Guides. See all. AOL. Glamorous gold jewelry staples you can wear on repeat — all under ...

  9. Electron configuration - Wikipedia

    en.wikipedia.org/wiki/Electron_configuration

    The second notation groups all orbitals with the same value of n together, corresponding to the "spectroscopic" order of orbital energies that is the reverse of the order in which electrons are removed from a given atom to form positive ions; 3d is filled before 4s in the sequence Ti 4+, Ti 3+, Ti 2+, Ti +, Ti.