Question

Which of the following elements has properties different than the rest?

Answer 1

The correct answer is:  [D]:   "S"  (sulfur).
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Note:  The other answer choices:

[A]:  "K" (potassium) ; 
[B]:  "Na" (sodium) ; 
[C]  "Mg" (magnesium) ; 
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are all metals.
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Answer choice: [D]:  "S" (sulfur) ; is NOT a metal; and may exist in gaseous form.
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