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Identify the group of elements that corresponds to each of the following generalized electron configurations and indicate the number of unpaired electrons for each:

a. [noble gas] ns 2np5

b. [noble gas] ns2 (n-1)d2

c. [noble gas] ns2 (n-1)d10 np1

d. [noble gas] ns2 (n-2)f6

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Category:- Chemistry
Reference No.:- M9898570

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