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Old Oct 6th 2010, 11:13 AM   #1
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Total mechanical energy for a ground-state electron?

Could someone help me answer these questions, please?

"What is the total mechanical energy for a ground-state electron in H, He+, and Li++ atoms? For which atom is the electron most strongly bounded? Why?"

Any help would be appreciated!
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Old Oct 8th 2010, 03:03 PM   #2
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The enegy of the Hydrogen-like atom is here
Hydrogen-like atom - Wikipedia, the free encyclopedia
E(Z,n)=-Z^2 E(Hydrogen)/n^2.
The ground state is n=1 so
E(Z) = - Z^2 E(Hydrogen).
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