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Ionic Bond

Choose the co...

Question

Choose the correct order of bond strength by overlapping of atomic orbitals:

1 s - 1 s > 1 s - 2 s > 1 s - 2 p

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2 s - 2 s > 2 s - 2 p > 2 p - 2 p

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2 s - 2 p > 2 s - 2 s > 2 p - 2 p

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1 s - 1 s > 1 s - 2 p > 1 s - 2 s

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Solution

The correct option is D $1 s - 1 s > 1 s - 2 p > 1 s - 2 s$
When n is less, then overlapping is stronger.
Therefore, the bond formed by $1 s - 1 s$ overlap is strongest.
When n is different value, overlap with directional nature domainants. Hence $1 s - 2 p > 1 s - 2 s$

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