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  2. Helium dimer - Wikipedia

    en.wikipedia.org/wiki/Helium_dimer

    The binding energy is only about 1.3 mK, 10 −7 eV [6] [7] [8] or 1.1×10 −5 kcal/mol. [9] Both helium atoms in the dimer can be ionized by a single photon with energy 63.86 eV. The proposed mechanism for this double ionization is that the photon ejects an electron from one atom, and then that electron hits the other helium atom and ionizes ...

  3. Molecular orbital diagram - Wikipedia

    en.wikipedia.org/wiki/Molecular_orbital_diagram

    In agreement with this description the photoelectron spectrum for water shows a sharp peak for the nonbonding 1b 1 MO (12.6 eV) and three broad peaks for the 3a 1 MO (14.7 eV), 1b 2 MO (18.5 eV) and the 2a 1 MO (32.2 eV). [29] The 1b 1 MO is a lone pair, while the 3a 1, 1b 2 and 2a 1 MO's can be localized to give two O−H bonds and an in-plane ...

  4. Molecular orbital - Wikipedia

    en.wikipedia.org/wiki/Molecular_orbital

    The qualitative approach of MO analysis uses a molecular orbital diagram to visualize bonding interactions in a molecule. In this type of diagram, the molecular orbitals are represented by horizontal lines; the higher a line the higher the energy of the orbital, and degenerate orbitals are placed on the same level with a space between them.

  5. Molecular orbital theory - Wikipedia

    en.wikipedia.org/wiki/Molecular_orbital_theory

    Molecular orbital diagram of He 2 Bond order is the number of chemical bonds between a pair of atoms. The bond order of a molecule can be calculated by subtracting the number of electrons in anti-bonding orbitals from the number of bonding orbitals, and the resulting number is then divided by two.

  6. Antibonding molecular orbital - Wikipedia

    en.wikipedia.org/wiki/Antibonding_molecular_orbital

    The higher-energy orbital is the antibonding orbital, which is less stable and opposes bonding if it is occupied. In a molecule such as H 2, the two electrons normally occupy the lower-energy bonding orbital, so that the molecule is more stable than the separate H atoms. He 2 electron configuration. The four electrons occupy one bonding orbital ...

  7. Scientists link surge in heavy metals in soil to California ...

    www.aol.com/scientists-surge-heavy-metals-soil...

    A view of flames and giant smoke over the sky as a fire erupted at Moss Landing Power Plant on Thursday that located on Pacific Coast Highway in Moss Landing of Monterey Bay, CA, Jan. 17, 2025.

  8. Bond order - Wikipedia

    en.wikipedia.org/wiki/Bond_order

    In chemistry, bond order is a formal measure of the multiplicity of a covalent bond between two atoms. As introduced by Gerhard Herzberg, [1] building off of work by R. S. Mulliken and Friedrich Hund, bond order is defined as the difference between the numbers of electron pairs in bonding and antibonding molecular orbitals.

  9. Today's Wordle Hint, Answer for #1305 on Tuesday, January 14 ...

    www.aol.com/todays-wordle-hint-answer-1305...

    Hints and the solution for today's Wordle on Tuesday, January 14.