Ionic character

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melissa_dis4K
Posts: 58
Joined: Thu Sep 27, 2018 11:28 pm

Ionic character

Postby melissa_dis4K » Wed Nov 28, 2018 10:23 pm

Just to clarify, when looking at the greater ionic character, the difference between the electronegativity of the two atoms, do the number of atoms, the subscripts make a difference? For example, comparing the molecules H (subscript 2)S and HCl. I know that HCl has the greater ionic character, but does the subscript of 2 matter on the H2S or do we just compare the electronegativity of the atoms?

Te Jung Yang 4K
Posts: 36
Joined: Thu Sep 27, 2018 11:18 pm

Re: Ionic character

Postby Te Jung Yang 4K » Wed Nov 28, 2018 10:43 pm

I would think it is just the electronegativity. In your example, the bonds in H2S are the same, namely H - S bond. Since they are the same, they do not add to the ionic character.

Stevin1H
Posts: 51
Joined: Thu Sep 27, 2018 11:17 pm

Re: Ionic character

Postby Stevin1H » Thu Nov 29, 2018 10:14 am

For determining the ionic character, we only look at the electronegativity for the individual atom. So for H2S, we would only consider the electronegativity of a single H and a single S atom to determine the ionic character of the compound.


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