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OpenStudy (anonymous):
For the following atoms in their ground state determine the number of electrons in each energy shell. Na: energy shell 1,2,3,and 4. Please help I have no idea how to find these my professor didn't cover this and my homework is due in an hour.
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OpenStudy (ipwnbunnies):
Electron config for Na: 1s2 2s2 2p6 3s1; can you figure it out?
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