What is the electron arrangement for potassium atomic number 19

Asked by admin @ 02/08/2021 in Physics viewed by 337 People

What is the electronic configuration of Potassium(atomic number-19)

Answered by admin @ 02/08/2021

Answer:

1s2 2s2 2p6 3s2 3p6 4s1.

Explanation:

In order to write the Potassium electron configuration we first need to know the number of electrons for the K atom (there are 19 electrons). When we write the configuration we'll put all 19 electrons in orbitals around the nucleus of the Potassium atom.

In writing the electron configuration for Potassium the first two electrons will go in the 1s orbital. Since 1s can only hold two electrons the next 2 electrons for Potassium go in the 2s orbital. The next six electrons will go in the 2p orbital. The p orbital can hold up to six electrons. We'll put six in the 2p orbital and then put the next two electrons in the 3s. Since the 3s if now full we'll move to the 3p where we'll place the next six electrons. We now shift to the 4s orbital where we place the remaining electron.

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What is the electron arrangement for potassium atomic number 19

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