4. Possibility of ionic crystals R+R“. Imagine a crystal that exploits for binding the coulomb attraction of the positiv

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4 Possibility Of Ionic Crystals R R Imagine A Crystal That Exploits For Binding The Coulomb Attraction Of The Positiv 1 (65.41 KiB) Viewed 30 times

4. Possibility of ionic crystals R+R“. Imagine a crystal that exploits for binding the coulomb attraction of the positive and negative ions of the same atom or molecule R. This is believed to occur with certain organic molecules, but it is not found when R is a single atom. Use the data in Tables 5 and 6 to evaluate the stability of such a form of Na in the NaCl structure relative to normal metallic sodium. Evalu- ate the energy at the observed interatomic distance in metallic sodium, and use 0.78 eV as the electron affinity of Na.