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March 25, 2017

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Use Lewis symbols to represent the electron transfer between the following atoms to give ions with noble gas configuations:

A. Mg and S
B. Ba and I

  • Lauren - ,

    I can't draw these on the computer or these boards.
    Mg: is the neutral Mg atom.
    ..
    :S: is the neutral S atom.

    Now move the two electrons on Mg to the bottom of S. That leaves Mg with no electrons and a 2+ charge and it leaves S with 8 electrons and a 2- charge.
    Ba and I are done the same way except the formula is BaI2 so 1 electron from Ba is transferred to one of the I atoms and the other electron from Ba is transferred to the other I atom. Ba then carries a 2+ charge and each I carries a -1 charge.

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