<p>Can someone explain why Rubidium is the most reactive? Yes it is an alkali metal but since it is so far down in its group, i assumed silver would be more reactive…</p>
<p>Rubidium is the most reactive because for metals the farther left and down you go on the periodic table, the more reactive and metallic they get.</p>
<p>Also, in general, Halogens and Alkali Metals are the most reactive elements.</p>
<p>There’s not much to it. Alkali metals have the lowest ionization energies because they want to lose that outer valence electron to attain noble gas configuration.</p>
<p>Also, electron shielding increases down a group, so ionization energies are lower, making the element more likely to lose electrons, and thus, more reactive.</p>
<p>Chemical reactivity increases down the alkali group, so in terms of reactivity, Rb > K > Na, etc.</p>
<p>OMG WHY REMAKE HAX!!11one1!shift!!!1</p>
<p>It’s the shielding effect. There are more orbitals as you move further down the group; the increasing number of orbitals shields the outermost valance electrons from the positive nucleus’s pull.</p>
<p>Silver is one of the least reactive metals because it incorporates one of its 5s electrons to completely fill the 4d orbital.</p>
<p>This assuming that you’re familiar with the fundamental principle of chemical reactivity: it depends on the configuration of the element’s valence electrons. Otherwise I’m speaking gibberish lolololol.</p>
<p>I signed up for this test because I took AP. But I decided to take a different one instead. I’m not bad at Chem, at all. I mean, it’s one of my more difficult subjects… but I’m not bad at it. Just not amazing or anything. </p>
<p>Anyway, I kind of freaked out after taking the Late AP test and decided I didn’t want to touch anymore chem. Apparently a lot of CCers felt that it was an overly difficult test. </p>
<p>So do you think I should give chem another shot in the fall? Was it easy? If I keep my chem knowledge brushed up from AP will I be okay?</p>
<p>To all you people who think or at this point “know” that you got 800s, did you take any prep classes, use a guidebook, or just wing it ( by the way I have 3 wrong so far, 2 omitted)</p>