Among the following species, which has zero bond order?
Show Hint
- $\mathrm{H}_2$
- $\mathrm{H}_2^+$
- $\mathrm{He}_2$
- $\mathrm{He}_2^+$
The Correct Option is C
Solution and Explanation
Bond order = $\frac{N_b - N_a}{2}$.
Step 2: Detailed Explanation:
$\mathrm{He_2}$ has electronic configuration $(\sigma 1s)^2 (\sigma^* 1s)^2$, bond order = $\frac{2-2}{2} = 0$.
Step 3: Final Answer:
$\mathrm{He}_2$ has zero bond order.
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