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Odd Element Out

Science brain teasers require understanding of the physical or biological world and the laws that govern it.


Puzzle ID:#8511
Fun:*** (2.26)
Difficulty:*** (2.66)
Submitted By:snaps*au****




Which of the following atomic elements does not belong in the following list?

Carbon, Neon, Silicon, Phosphorus, Iodine, Xenon

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Dec 13, 2002

Good one. Very creative use of the Periodic Table. In a pinch one could spell iodine like this: IODyNe
But of course that would not be correct.
Dec 15, 2002

Here's another way.
Iodine is the only one that begins with a vowel, but that would be english not science.
Good job.
Jan 16, 2003

Time to get a girlfriend, my man.
Jan 31, 2003

Please, you're giving us science people a bad name. What's with this "spelt," word? Try, "spelled," instead.
Jan 31, 2003

spelt: v. A past tense and a past participle of spell. From "The American Heritage Dictionary of the English Language, Fourth Edition Copyright © 2000 by Houghton Mifflin Company" via
Aug 20, 2003

If I was an editor, I would change the category of this puzzle. It has nothing to do with knowledge of the sciences. Therefore, it should be placed in language or group. However, I did quite like it...
Nov 26, 2003

Is iodine also the only one that's liquid at room temperature?
Mar 06, 2004

It is interesting how iodine can be selected, but for different reasons. Iodine is also the only element in the list whose atomic number is a prime number.
Sep 02, 2006

That also would've went into the Language section.

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