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OpenStudy (anonymous):
If the electron configuration of a ground state potassium atom is 1s22s22p63s1, the electron configuration of the potassium cation (K+) would be: A.1s22s22p63s1 B.1s12s22p63s1 C.1s22s22p63s2 D.1s22s22p6 E.none of the above
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OpenStudy (cuanchi):
D.1s22s22p6
OpenStudy (cuanchi):
it lost the last electron in the 3s1 and became charged + because the number of protons in the nucleus doesn't changed
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