JEE Mains · Chemistry · STD 11 - 4. Chemical bonding and molecular structure
According to molecular orbital theory, which of the following is true with respect to \(Li_2^ + \) and \(Li_2^ - \) ?
- A \(Li_2^ + \) is unstable and \(Li_2^ - \) is stable
- B \(Li_2^ + \) is stable and \(Li_2^ - \) is unstable
- C Both are stable
- D Both are unstable
Answer & Solution
Correct Answer
(C) Both are stable
Step-by-step Solution
Detailed explanation
\(Li_2^+\): Electrons = 5 MO Config: \((\sigma_{1s})^2 (\sigma_{1s}^*)^2 (\sigma_{2s})^1\) Bond Order = \(\frac{1}{2} (N_b - N_a) = \frac{1}{2} (3 - 2) = 0.5\) \(Li_2^-\): Electrons = 7 MO Config: \((\sigma_{1s})^2 (\sigma_{1s}^*)^2 (\sigma_{2s})^2 (\sigma_{2s}^*)^1\) Bond Order…
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