I'm stuck on 10 problems we were assigned that involve electron Dot notation and Lewis structures. I know how to do that, but i am having trouble on finding the number of Valence Electrons. It is really pissing me off. Anybody taking this class that knows how to find them?
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Like the last guy said, they're the ones on the outermost shell.Classic RT - RT02667
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You fill up the S and P electron levels from left to right. Think of each atoms "box" on the periodic table as a space for an electron (forget the D bock, the transition metals, for now).
To make it even simpler, forget the S and P levels. Each "box" can hold one electron.
So... Na has 1 velece electron because its the first element in its group. Al would have 3 because its the 3rd element in its group. Get it?. Comment

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