So I'm reviewing chemistry but am getting stumped on this question. The answer in the book may be a typo as the letter doesn't correspond and I'm just confused.
Which of the following substances is most likely to be diamagnetic?
Answer in the book says Iron, which is answer choice C (But that's actually cobalt).
I'm actually really confused on this because I did draw out the electron configurations of the others to double check and for Iron it has unpaired electrons.
[Ar] 4s^2 3d^6
The D subshell has 5 orbitals, each can hold 2 electrons at most. According to Hund's rule the filling order for these boxes is to fill it to make each electron have their own space. [Okay this is hard to explain its like about 5am but if you're good at chemistry you probably know what i mean].
[ i i ] [l l ] [l ] [l ] [l ] [l ]
I thought diamagnetic had all paired electrons in the orbitals and paramagnetic had unpaired electrons in orbitals.
EDIT: I thought the only screwy ones with this was Cr and Cu. Which allowed you to take from the 4s subshell.
Post edited at 3:02 am on June 11, 2012 by DaffySpaffy