<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<big><font size="2"><big>For the 12th edition of the textbook
there's a couple of corrections (that I know about).<br>
<br>
1) There is a mistake in the answer to the Give It Some
Thought question on<br>
page 226, part (a).<br>
<br>
For the 3rd shell, n=3, there is 1 3s orbital, 3 3p
orbitals and 5 3d<br>
orbitals for a total of 9 orbitals (n^2).<br>
<br>
The answer states there are 10 3d orbitals. That's
incorrect. There are 5 d-orbitals<br>
in any d subshell (immaterial of what shell). Any
d-subshell will have 5 d-orbitals<br>
and can hold a maximum of 10 electrons (hence 10
transition elements).<br>
<br>
2) </big></font></big>There's a mistake on page 234 at the
bottom of the page. The electron config. for Se <br>
is given as [Ar]4s<sup class="moz-txt-sup"><span
style="display:inline-block;width:0;height:0;overflow:hidden">^</span>2</sup>
3d<sup class="moz-txt-sup"><span
style="display:inline-block;width:0;height:0;overflow:hidden">^</span>10</sup>
4p<sup class="moz-txt-sup"><span
style="display:inline-block;width:0;height:0;overflow:hidden">^</span>4</sup>,
which is correct. Then it's given again with the subshells <br>
arranged in order of inc. principal quantum number as [Ar]3d<sup
class="moz-txt-sup"><span
style="display:inline-block;width:0;height:0;overflow:hidden">^</span>10</sup>
4s<sup class="moz-txt-sup"><span
style="display:inline-block;width:0;height:0;overflow:hidden">^</span>2</sup>
4p<sup class="moz-txt-sup"><span
style="display:inline-block;width:0;height:0;overflow:hidden">^</span>3</sup>.
This is <br>
INcorrect. Somehow an electron in the 4p was lost.<br>
<br>
Dr. Zellmer
</body>
</html>