1.

What is the atomic number of element havimaximum no, of unpaired e in 4p subshell(1) 33 (2) 17 (3) 53 (4)15

Answer»

To know which compound has the maximum number of unpaired electrons in their 4p sub-shell. We need to check their Electronic Configuration, which are given as follows:

Electronic Configuration of element having Atomic number 33:1s22s22p63s23p64s23d104p3.

Electronic Configuration of element having Atomic number 17:1s22s22p63s23p5

Electronic Configuration of element having Atomic number 53:1s22s22p63s23p64s23d104p34p65s24d105p5.

Electronic Configuration of element having Atomic number 15:1s22s22p63s23p3.

Observation of the above given 4 E.C. tells us that the element having Atomic number 33 will have the maximum number of unpaired electrons i.e. 3

Therefore, option (1) is correct.



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