<ol>
<li><p>highest entropy per mole was the one with the 2 gases as products</p></li>
<li><p>true. the more electrons you have, the more energy levels you’ll have. the more energy levels you have, the farther away you get away from the nucleus, making the radius larger.</p></li>
</ol>
<p>do good colleges ask for your complete record of SAT2 scores? if they do i want to cancel it and retake it in november… score choice is pretty cool tho~</p>
<p>@jmnd3:
- you mean the one with the gases on both sides of the equation?
- True. just think about ions: as you keep the number of neutrons and protons constant, if you add electrons, the size of the atom increases.</p>
<p>the size of the atoms are directly proportional to electrons…dats true
but wont the size of the proton also have any effect? just curious…</p>
<p>I think this atom proportional to electron question is false. As charlieharper stated, it is related to energy levels. The more energy levels there are, the bigger the atom. This can be seen down a group of elements. Across the period, the atoms actually become smaller; that’s the trend. This is because of higher effective nuclear charge, i.e. more protons. So, yeah, I think it is false. Adding electrons do not necessarily increase the size/radius of an atom; just look across the period!</p>
<p>^^ That’s true, in addition to metals having smaller ionic radii than nonmetals, while possibly having more electrons. For example, look at Mg 2+ and F-. Both have 10 electrons, but Mg2+ is much smaller because of the greater effective nuclear charge.</p>
<p>Another point: if an atom undergoes radioactive decay and keeps the same number of electrons, its size will either decrease or increase</p>
<p>but the thing is, I don’t know if you had to assume protons were being kept constant</p>
<p>i doubt it, it didn’t say anything about that.</p>
<p>so it is false right? yay
what do you get if you get like 1-2 wrong and 2 omit?</p>
<p>well, i think it is false…hopefully, it is
i think if u get 2 wrong and 2 omit, u are still in the 800 zone. good luck!</p>
<p>I too chose false because the question said nothing about protons whatsoever.</p>
<p>“The more number of electrons the larger the size of the atom.”
[Structure</a> of a matter, protons, neutrons, quarks, electrons, gluons: Etacude.com](<a href=“etacude.com”>etacude.com)</p>
<p>i cant help but agree with you guys tho… damn i should have trusted my instincts</p>
<p>by the way can people spew out just all the questions you know? if i got 5 wrong or more i want to cancel and i got like 3.5 days to do so</p>
<p>someone mentioned:
- highest entropy in one mole? no idea where that was on the test but if ur referring to the gas formation entropy it was D or sth cuz it had 2 moles on the left side and 3 moles on the right side (cant remember fosho tho)
- the doubled o2 and sth concentrations?
- anyone remember the ttces? the bronsted lowry one, anything else?</p>
<p>I think the most entropy change was when a compound which was either in the solid or liquid state(not sure which one) changed to another compound which was in the gaseous state.</p>
<p>Also, does anyone know the answer to a question about the bond that kept a certain X2’s molecules together?</p>
<p>yeah yeah
or aqueous state</p>
<p>what about the o2 and co2 concentrations? someone mentioned them… im guessing they had they have the same moles and volumes, just different densities</p>
<p>wasn’t it london dispersion forces?
it certainly cant be polar covalent…</p>
<p>yup it was london dispersion forces…
for o2 and co2 they have the same number of molecules…i think cause they have equal number of mols…</p>
<p>anyone remember the ttces?</p>
<p>i got like a lot of trues on the 1st column and a lot of falses on the 2nd side. like the 1st 4 i put false. anyone else have the same “problem”</p>
<p>In general, totally not discussing any specific questions…:</p>
<p>Electrons and atomic radius are related, but it is neither direct nor indirect. Atomic radius tends to decrease over periods and increase down groups.</p>
<p>arent we allowed to talk about them, now that the embargo has been lifted?
but yeah i get what you’re saying</p>