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Chapter 2 homework problem 47

Posted: Fri Oct 21, 2016 4:00 pm
by Beata_Vayngortin_3L
In chapter 2 #47, I do not understand parts b and c. The problem gives the ground state of of atoms and asks us to predict the type of orbital from which an electron will be removed to form the +1 ion. part b gives you Mn (I thought it would be removed from the 3d but the correct answer is 4s.) part d gives Au (I thought it would be removed from 5d but the answer is 6s). I just don't understand why the electron would be removed from the s orbital and not the d orbital.

Re: Chapter 2 homework problem 47

Posted: Fri Oct 21, 2016 4:54 pm
by Chem_Mod
The s orbital for transition metals has a higher principle quantum number Ex(4s vs 3d for first row transition metals). For the transition metals, electrons are first removed from the s orbital and then the d orbitals (if necessary) because the s orbital has a higher principle quantum number