Q.

 LIST - 1

A) Aerogens

B) Representative elements

C) Transition elements

D) Inner transition elements

LIST - 2

1) Form bonds by gaining, losing or sharing of electrons

2) All are present in atmosphere mainly

3) Common oxidation state of +3

4)  elements of longest periods

5) General configuration ns1-2(n-1)d1-10

The correct match is


 

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a

 ABCD 1234

b

  ABCD 3214

c

 ABCD 5214

d

 ABCD 2153

answer is D.

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Detailed Solution

We know that Noble gases are also called as Aerogens and noble gases have stable configuration and they are unreactive in nature.

The elements of group ‘s’ and ‘p’ blocks are called as Representative elements because their outer shells are not completely filled with electrons, they try to get the nearest inert gas configuration by forming  bonds by gaining, losing or sharing electrons.

Transition elements belongs to d-block and their General electronic  configuration is ns1-2(n-1)d1-10

Inner transition elements are f-block elements and the common oxidation state of F-block elements is +3.

Therefore, from the above statement it is clear that option(b) is the answer.


 

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