Homework Problem 2D.3

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Talia Dini - 3I
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Joined: Wed Sep 30, 2020 9:32 pm

Homework Problem 2D.3

Postby Talia Dini - 3I » Sun Nov 15, 2020 10:22 pm

I'm having some trouble figuring out part c of this problem. The answer key says that BeBr2 does not have bonds that are primarily ionic, however, I do not understand this. Could someone please explain this to me?

2D.3 Which of these compounds has bonds that are primarily ionic? (a) BBr3; (b) BaBr2; (c) BeBr2.

Nicole Attiq 3D
Posts: 55
Joined: Wed Sep 30, 2020 9:35 pm

Re: Homework Problem 2D.3

Postby Nicole Attiq 3D » Sun Nov 15, 2020 10:26 pm

I'm confused about this as well. Maybe the question was asking which had the MOST ionic character?

Gabby Magat 3F
Posts: 103
Joined: Wed Sep 30, 2020 10:04 pm

Re: Homework Problem 2D.3

Postby Gabby Magat 3F » Sun Nov 15, 2020 10:28 pm

I'm not entirely sure, but in the 5/6 Sapling homework (I'm thinking of Question 17), the solution explained that though the differences in electronegativity may be large, the molecule's geometry may be "equal in polarity and evenly distributed in space." This is kind of weird, but because of the way the atoms are configured, they may differ in electronegativity but be considered nonpolar because of their symmetry, and therefore BeBr2 would not be considered primarily ionic (at least in bonding?). I may be wrong, so if someone understands this better, please correct me!

Bailey Giovanoli 1L
Posts: 103
Joined: Wed Sep 30, 2020 9:50 pm

Re: Homework Problem 2D.3

Postby Bailey Giovanoli 1L » Sun Nov 15, 2020 10:43 pm

So, essentially it is asking which has the most ionic character. Therefore, the one with the highest electronegativity different is the most ionic.

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