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How many 3d electrons are in an atom of each element?(a) Fe(b) Sn(c) K(d) As

Chapter 9, Problem 70P

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QUESTION:

How many 3d electrons are in an atom of each element?

(a) Fe

(b) Zn

(c) K

(d) As

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QUESTION:

How many 3d electrons are in an atom of each element?

(a) Fe

(b) Zn

(c) K

(d) As

ANSWER:

Step 1 of 4

The presence of number of 3d electrons can be known from the electronic configuration of the respective elements.

(a) Fe

The electronic configuration of \({ }_{26} \mathrm{Fe}[\mathrm{Ar}] 3 \mathrm{~d}^{6} 4 \mathrm{~s}^{2}\)

Fe has 6 electrons in its d-orbital.

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