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Hi there.
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In this question, we are trying to draw the lewis structure for the diatomic molecule, p2.
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And the first thing we notice is that phosphorus is in the same group as nitrogen.
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So we would expect its dot structure to look the same as n2.
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Let's go ahead and figure out what that is.
00:21
So phosphorus is in group five of the periodic table.
00:24
So each phosphorus has five valence electrons, and there are two phosphorus.
00:29
So that's a total of 10.
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So our finished structure should have 10 dots in it because each dot in a lewis structure represents a valence electron.
00:40
All right.
00:42
So let's go ahead and see if we can complete this structure using a total of 10 dots with each phosphorus having an octet when we're done.
00:53
Okay, so let's go ahead and get started.
00:56
We know there has to be a pair of electrons holding the two phosphorus together.
01:00
And then let's go ahead and put in our other dots completing octets.
01:06
All right.
01:07
So at this point, we've run out of dots.
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Those are all ten dots, yet phosphorus on the right here only has four dots around it.
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So that means we need to take a pair of dots that are a lone pair...