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Construct The Molecular Orbital Diagram For He2 And Then Identify The Bond
Order. Bond Order: Click Within The Blue Boxes To Add Electrons.

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Question: Construct the molecular orbital diagram for He2 and then identi…
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Construct the molecular orbital diagram for Hez and then identify the bond order.
Bond order:
Energy
OOOOO
Atom
Molecule
Atom
Не
Не,
не
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General guidance
Concepts and reason Bond order is the number, which indicates the total number of bonds present between two atoms. Bond order describes the bond strength of the molecule; If the bond order is more, the bond strength would also be more for that molecule. BondOrder o Bond strength.
Fundamentals
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Step-by-step
FIRST STEP ALL STEPS | ANSWER ONLY
Step 1 of 2 A
The given molecule is He, which has 4 electrons in it. Molecular orbital diagram for the molecule Heg is shown below.
Is
Energy
He atom
He atom
He2 Molecule
Atom
Atom
Explanation Common mistakes Hint for next step
Molecular orbital diagram has been drawn for the given molecule He. This has totally 4 electrons in it. In molecular orbital diagram, it is clearly shown that the bonding orbital and the antibonding orbitals has two electrons each. Therefore, the number of bonding electrons are 2 and the number of anti-bonding electrons are 2.
Step 2 of 2 ^
The given molecule is Hez. The number of bonding electrons in Heg molecule is 2 The number of anti-bonding electrons in He, molecule is 2 Now,
B.O= }(B.E – A.B.E)
= {(2 – 2)
= 10
= 0
Therefore, the bond order for the given molecule He2 is zero.
Bond order and the molecular orbital of the diagram is given below.
bond order
Energy
He atom
He atom
oooo
He2 Molecule
Atom
Atom
Explanation Common mistakes Bond order of the given molecule (He) has been calculated by using the bond order formula with the help of molecular orbital diagram. Bond order calculation:
B.O=}(B.E – A.B.E)
where,
B.O=Bond order
B.E=Bonding electrons
A.B.E=Anti – bonding electrons
Answer Bond order and the molecular orbital of the diagram is given below.
bond order
Energy
OOOO
He atom
L’
He atom
Atom

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