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  2. Koopmans' theorem - Wikipedia

    en.wikipedia.org/wiki/Koopmans'_theorem

    For N 2 in contrast, the order of orbital energies is not identical to the order of ionization energies. Near-Hartree–Fock calculations with a large basis set indicate that the 1π u bonding orbital is the HOMO. However the lowest ionization energy corresponds to removal of an electron from the 3σ g bonding orbital. In this case the ...

  3. Electron ionization - Wikipedia

    en.wikipedia.org/wiki/Electron_ionization

    Electron ionization. Electron ionization (EI, formerly known as electron impact ionization [1] and electron bombardment ionization [2]) is an ionization method in which energetic electrons interact with solid or gas phase atoms or molecules to produce ions. [3] EI was one of the first ionization techniques developed for mass spectrometry. [4]

  4. Periodic trends - Wikipedia

    en.wikipedia.org/wiki/Periodic_trends

    The ionization energy is the minimum amount of energy that an electron in a gaseous atom or ion has to absorb to come out of the influence of the attracting force of the nucleus. It is also referred to as ionization potential. The first ionization energy is the amount of energy that is required to remove the first electron from a neutral atom.

  5. Molar ionization energies of the elements - Wikipedia

    en.wikipedia.org/wiki/Molar_ionization_energies...

    The first molar ionization energy applies to the neutral atoms. The second, third, etc., molar ionization energy applies to the further removal of an electron from a singly, doubly, etc., charged ion. For ionization energies measured in the unit eV, see Ionization energies of the elements (data page). All data from rutherfordium onwards is ...

  6. Atomic physics - Wikipedia

    en.wikipedia.org/wiki/Atomic_physics

    The atom is said to have undergone the process of ionization. If the electron absorbs a quantity of energy less than the binding energy, it will be transferred to an excited state. After a certain time, the electron in an excited state will "jump" (undergo a transition) to a lower state.

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  8. Ionic bonding - Wikipedia

    en.wikipedia.org/wiki/Ionic_bonding

    Ionic bonding can result from a redox reaction when atoms of an element (usually metal), whose ionization energy is low, give some of their electrons to achieve a stable electron configuration. In doing so, cations are formed.

  9. Lily Allen Says She's 'Really Not in a Good Place' and That ...

    www.aol.com/lifestyle/lily-allen-says-shes...

    Lily Allen is planning to take a break amid her ongoing mental health struggles.. On the Thursday, Jan. 9 episode of her BBC podcast Miss Me? with co-host Miquita Oliver, Allen, 39, admitted she's ...