Determining ionic character vs covalent

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Aj1156
Posts: 34
Joined: Fri Sep 28, 2018 12:22 am

Determining ionic character vs covalent

Postby Aj1156 » Sun Nov 11, 2018 12:49 pm

To calculate the difference in electro negativity such as PCl3 would you simply do (electronegativity of P) - (electronegstivity of Cl) or would you do (electronegativity of P) - (3 x electronegstivity of Cl)

JulieAljamal1E
Posts: 71
Joined: Fri Sep 28, 2018 12:24 am

Re: Determining ionic character vs covalent

Postby JulieAljamal1E » Sun Nov 11, 2018 1:05 pm

I believe you subtract the electronegativity of Phosphorus from that of Chlorine since chlorine is more electronegative. Thus it would be 3.16-2.19=0.97 electronegativity difference.

905096106
Posts: 30
Joined: Fri Oct 05, 2018 12:17 am

Re: Determining ionic character vs covalent

Postby 905096106 » Sun Nov 11, 2018 2:01 pm

You calculate the individual electronegativities of the p-cl bond and then add them together.

cara_cavarretta_3F
Posts: 32
Joined: Fri Sep 28, 2018 12:23 am

Re: Determining ionic character vs covalent

Postby cara_cavarretta_3F » Sun Nov 11, 2018 3:35 pm

On a related note, do you know if we will be responsible for knowing exact electronegativity values or should we just know the general trend?


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