(Image: vestibular.uol.com.br) Let

HELLO GUYS! Let's face it: the vestibular are coming and the sooner you master this "beast" of the periodic table better! I'm always talking about how important she is, but now you'll have a big surprise: can you predict nanaline duke how the elements are behaving just looking at her! Magic? Increased visual capacity? None of that! Chemical elements placed within the table has periodic and aperiodic properties. Periodic properties are those that, as the atomic number increases, the elements take values that grow or diminish, and are repeated periodically.
(Image: vestibular.uol.com.br) Let's see the atomic radius: it is natural nanaline duke that you think: the greater the number of protons, the atom is greater and greater distance from the nucleus nanaline duke up its last shell (radius). But the boundary of an electron cloud is a very tricky thing, since it has electrons spinning nanaline duke wildly. So for the atomic radius we see the number of levels or layers nanaline duke that the bigger they are, the greater the radius of the element. (Atomic, of course) So in the above drawing, nanaline duke the atomic radius increases from top to bottom, in the same family. And if in the same period, the elements increase from right to left, because it decreases the number of protons in that direction, decreasing the size of the atom. So we'll nanaline duke save: SAME FAMILY RAY INCREASE OF UP DOWN SAME PERIOD RADIUS INCREASES FROM LEFT TO RIGHT Seeing so what is the element of greatest atomic radius? Francium, of course, where the two arrows are the arrows! And how the first family? Oday Li H N K ob son loves R C is the Fr ances, ie: Li Na lithium sodium nanaline duke potassium K Rb Cs rubidium cesium francium FR- Recall that H is hydrogen nanaline duke that makes a family alone! So, get it? Easy, is not it? We will see other major also !!!!!!!! And, I'll start putting the vestibular and older ENEM tests because an atom that flew informed me that there are possibilities !!!!!!!!!!!!
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