Asked by vanessa
How many electrons are in an atom of O2-.
Answers
Answered by
DrBob222
I have a problem picturing and <b>atom</b> of O<sup>-2</sup>. I can picture an ion but not an atom.
Answered by
vanessa
yes ion.
Answered by
DrBob222
There are 8 electrons in an O atom so there must 16 electrons in two O atoms. It has a -2 charge; therefore, it must have two more electrons in excess.
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