Modern Atomic Theory: Atomic Radius Trends from how many valence electrons does have sodium Watch Video
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Description: All hail RADIUS! If you want to understand why an atom does what it does, take a look at those outermost electrons (a.k.a. the valence electrons). You can look at how many there are, but you can also look at how far away from the nucleus they are. Let's show the periodic trends for that.nnQuick visual of radius: http://youtu.be/ba2yN2HtPTAnAnother one: http://youtu.be/VopLrkfXfGw
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