Periodic Classi...

The numbers of groups in the s-block and p-block of the periodic table, respectively, are

The elements with atomic numbers 4, 12, 20, 38 and 56 belong to

The most metallic element in group 15 (nitrogen family) is
 

Observe the elements of period III and select the strongest reducing and oxidising agents, respectively.

Na, Mg, Al, Si, P, S, Cl, Ar

Select the pair of amphoteric oxides from the following:

Which among the following is the smallest in size?

Which of the following is not correct about the modern periodic table?

Elements A, B and C have positions in the periodic table as shown below:

(i) A is a metal.
(ii) C is smaller in size as compared to B.
(iii) Element A forms a negatively charged ion.

Which of the above statements is/are correct?

The bond in the compounds formed by the combination of group 14 and group 17 elements of the periodic table will be a/an

An element A belongs to third period and second group of the periodic table. The number of valence electrons of element A is