Why Is the Bond Order of B2 2- Calculated as 1.5?

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The bond order of B2 2- is calculated using the formula (number of bonding electrons - number of antibonding electrons)/2. For B2 2-, the correct count of bonding electrons is 6 and antibonding electrons is 2, leading to a bond order of (6-2)/2 = 2. However, confusion arises as some calculations mistakenly suggest a bond order of 1.5. This discrepancy highlights the importance of accurately identifying the electron configuration and counting the electrons involved. Understanding these calculations is crucial for determining molecular stability and bonding characteristics.
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Homework Statement



What is the bond order of B22-

Homework Equations



(Number of bonding electrons - number of antibonding electron)/2

The Attempt at a Solution



(3-0)/2 = 1.5, which is wrong. What's going on?
 
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stacker said:

Homework Statement



What is the bond order of B22-

Homework Equations



(Number of bonding electrons - number of antibonding electron)/2

The Attempt at a Solution



(3-0)/2 = 1.5, which is wrong. What's going on?

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