Question

Write all four quantum numbers of last electron of fe

Answer 1

And so we would write the following electronic configuration with respect to the atom....

1

s

2

2

s

2

2

p

6

3

s

2

3

p

6

4

s

2

3

d

6

But upon oxidation.......we gets

F

e

3

+

, and the standard electronic configuration is.....

{

1

s

2

2

s

2

2

p

6

3

s

2

3

p

6

3

d

5

}

3

+

So the last electron is from one of the (degenerate!)

d-orbitals....

And thus...........

n

=

3

;

l

=

2

(i.e. we have d-orbitals with 2 nodal planes)

;

m

l

=

−

2

,

−

1

,

0

,

1

,

or

2

;

m

s

=

±

1

2

Answer 2

Answer:

Here

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