Homework Help: Chemistry

Posted by danny123 on Saturday, November 13, 2010 at 3:33pm.

In calcium, the electron configuration is 2-8-8-2. Why does the 3rd level have more energy than the 2nd if they're both 8?

Chemistry - DrBob222, Saturday, November 13, 2010 at 4:43pm
The third level is further from the nucleus. N = 1, N = 2, N = 3, etc.

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