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Topic: identifying atoms  (Read 2048 times)

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Offline Mustapha

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identifying atoms
« on: September 24, 2014, 07:44:51 AM »
Given a dark shiny solid, what nondestructive test can be used to determine if it is an iodine or a metallic element.
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Offline kriggy

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Re: identifying atoms
« Reply #1 on: September 24, 2014, 07:57:39 AM »
The best is IMO mass spectrometry. It is destructive, however, it requires only very small amounts of sample. Or you can dissolve a bit in ethanol and then drop a few drops into starch solution and it should turn blue if its iodine
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Offline Borek

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Re: identifying atoms
« Reply #2 on: September 24, 2014, 09:58:15 AM »
You have to show your attempts at solving the question to receive help. This is a forum policy.

What do you know about properties of elemental iodine?
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