7th edition 2B.7

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Alyssa Bryan 3F
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7th edition 2B.7

Postby Alyssa Bryan 3F » Sun Nov 04, 2018 3:57 pm

In the given lewis structure, how are you able to identify the unknown element?

Chem_Mod
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Re: 7th edition 2B.7

Postby Chem_Mod » Sun Nov 04, 2018 8:06 pm

It might be better if you post the actual question.

rachana_korapati3C
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Re: 7th edition 2B.7

Postby rachana_korapati3C » Sun Nov 04, 2018 8:59 pm

From counting up all the lone pairs and bonds, you can calculate the total number of valence electrons for the compound. In this case, there are 32 VE. The diagram shows you how many Cl and O atoms are in the compound, so using that you can calculate the number of VE that come from those two atoms. 32 VE= 3(7) + 6 + E --> 5VE. It says that the unknown element is in period #, therefore you can deduce that the element is P because it's the only element in period 3 with 5 VE.


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