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The atomic mass of iodine is 127 g//mol....

The atomic mass of iodine is `127 g//mol`. A standing wave in iodine vapour at `400 k` has nodes that are `6:77 cm` apart when the frequency is `1000 H_(Z)`. At this temperature, is iodine vapour monatomic or daiatomic.

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The correct Answer is:
diatomic
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