Question

Group number 13 – 18 elements are known as P – block elements. Elements in which the last electron enters in the any of the three p-orbital of their outermost shells -p block elements. Their general electronic configuration is ns2np6.Group number 14 elements are known as Chalcogens.

(a)What are p -block elements
(i) Group no 12-14?
(ii) Group no 13-18
(iii)Group number 1-2.
(iv)Group number 12-18

(ii) why they are known as p-block elements?
(a) Because their last electron enters into p-subshell.
(b)Due to f-subshell
(c) Due to sigma electrons
(d) because their last electron enters into s-subshell.

(iii) What is the general electronic configuration of p-block elements?
(a) ns2np6
(b) ns2
(c) ns2np5.
(d) ns3np4.

(iv) What are chalcogens?
(a) Group number 12
(b) Group number 13
(c) Group number 14
(d) group number 15.​

Answer 1

Answer:

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Answer 2

Answer:

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