NCERT Class XI Chemistry Classification of Elements and Periodicity in Properties Solutions
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Question : 29
Total: 40
Write the general outer electronic configuration of s-, p-, d- and f- block elements.
Solution:
General outer electronic configuration :
s-block elements :n s 1 – 2 ; e.g., Na : 3 s 1
p-block elements :n s 2 n p 1 – 6 ; e.g., F : 2 s 2 2 p 5
d-block elements : (n – 1)d 1 – 10 n s 0 – 2 ; e.g., Zn : 3 d 10 4 s 2
f-block elements : (n – 2)f 1 – 14 ( n – 1 ) d 0 – 1 n s 2 ; e.g., Ce : 4 f 1 5 d 1 6 s 2 .
s-block elements :
p-block elements :
d-block elements : (n – 1)
f-block elements : (n – 2)
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