Chemistry Practice Problems Paramagnetic and Diamagnetic Practice Problems Solution: Which of the following atoms has the most unpaired...

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Solution: Which of the following atoms has the most unpaired electrons?(a) Co (b) Mn (c) V (d) Fe (e) Cr

Problem

Which of the following atoms has the most unpaired electrons?

(a) Co 

(b) Mn 

(c) V 

(d) Fe 

(e) Cr

Solution

Determine the # of unpaired electrons by constructing an orbital diagram for each atom


To do so, we need to do the following steps:

Step 1: Determine the shorthand e config. of the neutral element.

Step 2: Draw the orbital diagram for the outermost sublevel and determine the number of unpaired electron


Note that for a neutral element, Atomic Number = # of protons = # of electrons.


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