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Chemistry 20 Online
OpenStudy (highschoolmom2010):

how many electrons are in the highest occupied energy level of these atoms? a. barium b. sodium c. aluminum d. oxygen

OpenStudy (anonymous):

If you look at the periodic table, which element has the highest atomic number?

OpenStudy (anonymous):

Out of these, barium has the highest atomic number, and so, it has a higher occupied energy level than the others. So barium would be your answer.

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