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The positions of four elements K, L, M a...

The positions of four elements `K, L, M` and `N` in the periodic table are shown below :

Which of the following statements are correct ?
I. `K, L, M` and `N` are metalloids
II. `K` is a metal while `L, M` and `N` are non-metals
III. Among these four elements, `K` is the smallest in size.
IV. `K` is a metal while `L` and `M` are metalloids and `N` is a non-metal.

A

II and III only

B

I and III only

C

III and IV only

D

None of these.

Text Solution

Verified by Experts

The correct Answer is:
B
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