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Which three groups of the Periodic Table contain the most elements classified as metalloids (semimetals)?

$ (a)\;1,2 \;and\; 13 \\(b)\;2,13 and \;14 \\ (c)\;14,15\;and\;16 \\ (d)\;16,17\;and\;18 $

1 Answer

Go to the Periodic Table and note the location of the stepped line dividing metals and nonmetals.
Elements next to the left or right of this line are metalloids. Choice three includes 5 metalloids.
Hence c is the correct answer.
answered Mar 14, 2014 by meena.p

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