Problem: Which of the molecules in the choices given is not isoelectronic with the others? The choices are: SO3, NF3, NO3–, CO32–?a. SO3b. NF3c. NO3–d. CO32-e. all of the above are isoelectronic molecules

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Determine the group of each atom present in every formula and calculate for the total # of valence electrons to find which is not isoelectronic  

Isoelectronic compounds mean that they have the same number of valence electrons.

Recall that the # of valence electron is determined by the Group # of each atom.

Analyzing each compound:

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Problem Details

Which of the molecules in the choices given is not isoelectronic with the others? The choices are: SO3, NF3, NO3, CO32–?

a. SO3

b. NF3

c. NO3

d. CO32-

e. all of the above are isoelectronic molecules

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