error in sparknote SAT II chem test

Test Preparation
1

<li> Order the elements S, Cl, and F in terms of increasing atomic radii.
(A) S, Cl, F
(B) Cl, F, S
(C) F, S, Cl
(D) F, Cl, S
(E) S, F, Cl</li>
</ol>

<p>the answer should be d, but they say it is E</p>

<p>here is their explain:
9. E </p>

<p>Remember, atomic radii decrease moving across a period from left to right. This is because protons are added to the nucleus and these protons attract the electrons more strongly, pulling them in tighter and decreasing the atomic radius. Atomic radius increases moving down a group or family, however, because the value of n increases as you add another shell, the electrons spend more time away from the nucleus, dissipating the attraction between nuclear protons and themselves. Since fluorine and chlorine are both in the same group but chlorine is below fluorine, we know that chlorine is bigger than fluorine. Sulfur is to the left of both chlorine and fluorine, so it must be the smallest of all. Arranged in order of increasing size, they are S, F, Cl, or answer E.</p>

<p>the sentence below is so wrong:</p>

<hr>

<p>we know that chlorine is bigger than fluorine. Sulfur is to the left of both chlorine and fluorine, so it must be the smallest of all</p>

<hr>

<p>why the heck should S smaller? s should be bigger since its nucleus is less abtractive then F and Cl. and S and Cl are in the same period</p>

2

<p>I think a very good way to study chem is to fing all errors in sparknote. then your ability should be really improved</p>

3

<p>Another error, this is a T/F question<br>
S1:
Oxygen has a smaller first ionization energy than fluorine.<br>
S2:
Oxygen has a higher Zeff value than does fluorine.</p>

<p>Correct answer should be TF, but they said its FF</p>

<p>their explaination:
11. F, F </p>

<p>(Do not fill in CE.) While oxygen has a lower first ionization energy than nitrogen due to the p4 anomaly, as you pass oxygen (going from left to right across the period), the trend of increasing ionization energy continues; the increased Zeff results in subsequent elements in the period (such as fluorine) having a higher ionization energy than oxygen. Oxygen does not have a higher Zeff than that of fluorine, so the second statement is also false, and you would not fill in the CE oval.</p>

<p>the question is talking about O and F, the explaination is talking about O and N. OMG, what the heck?</p>

4

<p>all these errors appear in just half Chapter~~~~~~~imagine the entire book~~~~</p>

5

<p>Yeah, I didn't like Sparknotes either. I used it for MathIIC and it really annoyed me because I had to correct something every few pages.</p>

6

<p>They are wasting customers' time and I bought that book and wasted my entire week on it. right now I've got a test going on and I am not PREPARED!!!!!ANGRY!!!!!!!</p>