what is the electronic configuration of Cr24 according to affbau's principle and how we find its group,period and block?
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Explanation:
The answer given above arises because half-filled and fully filled orbitals are more stable, so an electron from 4s jumps to 3d making them both half-filled and much more stable.
Since the last electron enters the s subshell, therefore it belongs to s block.
Similarly, since the highest principal quantum number is 4, the period is 4th.
Group no. for s-block elements = Total no. of electrons in the valence shell = 6
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prachi2386:
ur whole answer is correct but the block u said,, is not correct..It belongs to d-block.
Sorry, I miscalculated it. Finally, the last electron jumps from 4s to 3d so it is a d-block element since the last or differentiating electron enters the d subshell.
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