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  • Consider the ground state of Cr atom <img alt="\left ( Z=24 \right )" src="https://lh4.googleusercontent.com/6f9UBhnX_0PzKkwuQXGTPEgAiO9ZvbDh7buFyZGzVLvLwheBtwngoaMSTV6aCPQ4vddOvghhBRCXrrGtRk4TZcxa

Consider the ground state of Cr atom \left ( Z=24 \right ). The numbers of electrons with the azimuthal quantum numbers l= 1\: and\: 2 are, respectively:

Option: 1

12 \: and \: 4


Option: 2

12 \: and \: 5


Option: 3

16 \: and \: 4


Option: 4

16 \: and \: 5


Answers (1)

best_answer

As we have learnt, 

The electronic configuration of Cr atom is = 1s2 2s2 2p6 3s2 3p6 3d5 4s1

Now, we know that for p, l = 1 and for d, l = 2

So, for p, there are a total of 12 electrons and for d, there are a total of 5 electrons.

Therefore, Option (2) is correct

Posted by

Irshad Anwar

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