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Home/ Questions/Use the molecular orbital diagram shown to determine which of the following is most stable. A....
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lizawr
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lizawr
Asked: April 10, 20222022-04-10T08:24:15+00:00 2022-04-10T08:24:15+00:00In: Chemistry

Use the molecular orbital diagram shown to determine which of the following is most stable. A….

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Use the molecular orbital diagram shown to determine which of the following is most stable.

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Use the molecular orbital diagram shown to determine which of the following is most stable. A....

A. F22+

B.  Ne22+

C. F22–

D. O22+

E. F2


♦ Relevant knowledge

A molecular orbital diagram  is an qualitative tool for that explains chemical bonding in molecules with respect to molecular orbital theory generally along with the linear combination the atomic orbitals (LCAO) method in particular.

The basic principle behind this theory is when molecules bond atoms and molecules, certain numbers of orbitals of the atomic scale join to form the identical amount of molecular orbitals however, they are not identical. 

molecular orbital diagram
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    tonytutoria
    2022-04-10T09:00:54+00:00Added an answer on April 10, 2022 at 9:00 am
    Concepts and Reason

    The bond order of a molecule is the number of bonds between the pair of atoms.

    The measurement of bond order is used to measure the strength of a molecule.

    A rise in bond order indicates an increase in bond strength, and therefore a stable compound.

    Molecular orbital theory can be used to calculate bond order.

    Fundamentals

    Molecular Orbital Theory

    Molecular orbital theory holds electrons in the molecular orbital, unlike valence bond theory which has electrons in individual orbitals.

    Molecular Orbitals

    Molecular orbitals are linear combinations of atomic orbitals. These molecular orbitals can be divided into two types.

    (i)bonding orbitals

    (ii)antibonding orbitals

    Molecular orbitals have a bond order:

    [katex]{\rm{bond}}\,{\rm{order}}\,{\rm{ = }}\,\frac{{{\rm{(Number}}\,{\rm{of}}\,{\rm{bonding}}\,{\rm{electrons – Number}}\,{\rm{of}}\,{\rm{anti}}\,{\rm{bonding}}\,{\rm{electrons)}}}}{{\rm{2}}}[/katex]

    General Molecular Orbital Diagram

    Atomic orbitals
Molecular orbitals
Atomic orbitals
S
*
P2P
P2P
S20
S
*
S2s

    [katex]\begin{array}{l}\\{\rm{Bond}}\,{\rm{order}}\,{\rm{of}}\,{{\rm{F}}_{\rm{2}}}^{{\rm{2 + }}}{\rm{ = }}\frac{{\rm{1}}}{{\rm{2}}}\left( {{\rm{8 – 4}}} \right)\\\\{\rm{ = 2}}\\\end{array}[/katex]

    Atomic orbitals
Molecular orbitals
Atomic orbitals
S
*
P20
GINO
2p
P2P
S20
S.*
S2s
Ne
Ne
Ne, 2+

    [katex]\begin{array}{l}\\{\rm{Bond}}\,{\rm{order}}\,{\rm{of}}\,{\rm{N}}{{\rm{e}}_{\rm{2}}}^{{\rm{2 + }}}{\rm{ = }}\frac{{\rm{1}}}{{\rm{2}}}\left( {{\rm{8 – 6}}} \right)\\\\{\rm{ = 1}}\\\end{array}[/katex]

    Atomic orbitals
Molecular orbitals
Atomic orbitals
S
*
Білім
P20
P2P
S20
S.*
S2s
F, 2-

    [katex]\begin{array}{l}\\{\rm{Bond order of }} {{\rm{F}}_{\rm{2}}}^{{\rm{2 – }}}{\rm{ = }}\frac{{\rm{1}}}{{\rm{2}}}\left( {{\rm{8 – 8}}} \right)\\\\{\rm{ = 0}}\\\end{array}[/katex]

    Atomic orbitals
Molecular orbitals
Atomic orbitals
P20
lian
P
P2P
SR
S2s
04

    [katex]\begin{array}{l}\\{\rm{Bond}}\,{\rm{order}}\,{\rm{of}}\,{{\rm{O}}_{\rm{2}}}^{{\rm{2 + }}}{\rm{ = }}\frac{{\rm{1}}}{{\rm{2}}}\left( {{\rm{8 – 2}}} \right)\\\\{\rm{ = 3}}\\\end{array}[/katex]

    Atomic orbitals
Molecular orbitals
Atomic orbitals
S2p*
P2P
GENIETEN
2p
2P
P20
S2P
S2*
Szs

    [katex]\begin{array}{l}\\{\rm{Bond  order  of }}{{\rm{F}}_{\rm{2}}}{\rm{ = }}\frac{{\rm{1}}}{{\rm{2}}}\left( {{\rm{8 – 6}}} \right)\\\\{\rm{ = 1}}\\\end{array}[/katex]

    [katex]{{\rm{O}}_{\rm{2}}}^{{\rm{2 + }}}\,{\rm{is}}\,{\rm{most}}\,{\rm{stable}}{\rm{.}}[/katex]

    Ans:

    [katex]{{\rm{O}}_{\rm{2}}}^{{\rm{2 + }}}\,{\rm{is}}\,{\rm{most}}\,{\rm{stable}}{\rm{.}}[/katex]

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