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Topic: Stable ionic compounds  (Read 1936 times)

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Offline hupnosis

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Stable ionic compounds
« on: January 21, 2016, 08:43:22 AM »
which of the following is most likely to be a stable ionic compound?

a) Rb20
b) BaCl
c) Na2N

I did a lewis dot diagrahm and got these resuslts
a) one oxygen electron is unpaired
b) 2 of the 3 Ba electrons are unpaired
c) one N electron is unpaired

which one of these are the most stable and how did you come to that conclusion?

thanks for the help in advance :)

Offline Hunter2

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Re: Stable ionic compounds
« Reply #1 on: January 21, 2016, 10:05:12 AM »
The first two answers are wrong, the only existing compound is Rb2O Rubidiumoxide. Each Rubidium give his s-electron to one p-Orbital of the Oxygen.
Barium has two s- electrons, one would be not paired. In c the nitrogen has one electron not paired, so these compounds do not exist under normal conditions.
« Last Edit: January 21, 2016, 10:23:16 AM by Hunter2 »

Offline AWK

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Re: Stable ionic compounds
« Reply #2 on: January 21, 2016, 10:21:04 AM »
Compound b and c rather do not exist. Expected printing error (BaCl2 or Na3N or Na2NH)?
AWK

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