10th Class Science Periodic Classification of Elements Question Bank Periodic Classification of Elements

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

Group 13 Group 14 Group 15

K - -

- L -

Eka-aluminium M N

Which of the following statements about these elements are correct?

I. K, L, M and N are all metalloids.

II. K is a metal while L, M and N are non-metals.

III. Among these four elements, K is smallest in size.

IV. K is a metal, L and M are metalloids, N is a non-metal.

A) Only II and III

B) Only I and III

C) Only III and IV

D) None of these.

Correct Answer: B