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What is the electron configuration of potassium?

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Quick Answer

The electron configuration of potassium is 1s22s22p63s23p64s1, according to the University of Maryland website. Potassium has a total of 19 electrons, but these electrons are arranged in four different energy levels.

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Full Answer

Each energy level has one or more orbitals where electrons reside. In one atom of potassium, the first energy level has two electrons in the s orbital. The second energy level has a total of eight electrons. Two of the electrons are in the s orbital and six are in the p orbital.

The third energy level also has electrons in the s and p orbitals. There are two in the s orbital and six in the p orbital, the same as in the second energy level. Finally, the fourth energy level has one electron in the s orbital.

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