71I think f block.
Because there are 10 electrons. So 10th element after Xenon. and the Period is 6 because the last shell no. is 6. So it is a lanthanoid and in f-block.
which block does this element belong to?? [Xe] 6s2 4f7 5d1
a)s-block b)p-block c)d-block d)f-block
Give proper reason plzz!:)
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4 Answers
71
1thats rite but i want show the exception in the EC and wht would b the reason?
1The reason for the different EC is the fact that half-filled orbitals are more stable than fully filled ones..
So the "8th electron" in the 4f orbital goes to 5d...