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  2. Electron configurations of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Electron_configurations_of...

    Here [Ne] refers to the core electrons which are the same as for the element neon (Ne), the last noble gas before phosphorus in the periodic table. The valence electrons (here 3s 2 3p 3) are written explicitly for all atoms. Electron configurations of elements beyond hassium (element 108) have never been measured; predictions are used below.

  3. Electron configuration - Wikipedia

    en.wikipedia.org/wiki/Electron_configuration

    Electron atomic and molecular orbitals A Bohr diagram of lithium. In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals. [1]

  4. Lithium - Wikipedia

    en.wikipedia.org/wiki/Lithium

    Electron configuration 2s 1: ... As an exception to the duet rule, a two-coordinate lithate complex with four electrons around lithium, [Li(thf) 4] + [ ...

  5. Periodic table (electron configurations) - Wikipedia

    en.wikipedia.org/wiki/Periodic_table_(electron...

    Configurations of elements 109 and above are not available. Predictions from reliable sources have been used for these elements. Grayed out electron numbers indicate subshells filled to their maximum. Bracketed noble gas symbols on the left represent inner configurations that are the same in each period. Written out, these are: He, 2, helium : 1s 2

  6. Lithium atom - Wikipedia

    en.wikipedia.org/wiki/Lithium_atom

    Lithium atom. A lithium atom is an atom of the chemical element lithium.Stable lithium is composed of three electrons bound by the electromagnetic force to a nucleus containing three protons along with either three or four neutrons, depending on the isotope, held together by the strong force.

  7. Periodic table - Wikipedia

    en.wikipedia.org/wiki/Periodic_table

    Starting from the third element, lithium, the first shell is full, so its third electron occupies a 2s orbital, giving a 1s 2 2s 1 configuration. The 2s electron is lithium's only valence electron, as the 1s subshell is now too tightly bound to the nucleus to participate in chemical bonding to other atoms: such a shell is called a "core shell ...

  8. Core electron - Wikipedia

    en.wikipedia.org/wiki/Core_electron

    Core electrons are the electrons in an atom that are not ... uranium - is comparable to the radius of a lithium ... with electron configuration 1s 2 2s 2 2p 6 3s 2 3p ...

  9. File:Electron shell 003 Lithium - no label.svg - Wikipedia

    en.wikipedia.org/wiki/File:Electron_shell_003...

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