Identify the correct set for p - block elements. 

  1. Alkali metals, halogens, Nobel gases
  2. Halogens, chalcogens, noble gases
  3. inner transition metals, alkali metals, metalloids
  4. Halogens, chalcogens, inner transition metals

Answer (Detailed Solution Below)

Option 2 : Halogens, chalcogens, noble gases
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Detailed Solution

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Explanation:-

  •  P-Block Elements - The atoms of the elements of which the last electron from their outer shell inters p- subshell is called P-block elements.
  • The general electronic configuration of P-block elements is  nS2nP1-6
  • From Group 13 to Group 18 in the periodic table are P- Block Elements.
  • P-Block elements have some common names according to their Group. Group 13 (Icosagens), Group 14 (Carbon Family), Group 15 (Pnictogens), Group 16 (Chalcogens), Group 17 (Halogens), Group 18 ( Noble Gases).
  • It is interesting to note that the non-metals and metalloids exist only in the p-block of the periodic table.
  • The non-metallic character of elements decreases down the group.
  • In fact, the heaviest element in each p-block group is the most metallic in nature

.

Group

13

14

15

16

17

18

General electronic configuration

ns2np1

ns2np2

ns2np3

ns2np4

ns2np5

ns2np6

First member of the group

B

C

N

O

F

He

Group oxidation state

+3

+4

+5

+6

+7

+8

Other oxidation states

+1

+2, -4

+3, -3

+4, +2, -2

+5, +3, +1, -1

+6, +4, +2

 

Additional Information

a) D- block Elements - They are commonly known as Transition Metals. 

b) S- block Elements - Group 1 (Alkali metals)  and Group 2 (Alkaline Earth Metals) of the periodic table are called S- block elements.

 

c) F- block Elements - They are commonly known as Inner- Transition Metals.

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