What is the electron configuration of potassium (K)?

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Question: What is the electron configuration of potassium (K)?

Options:

Correct Answer: 1s² 2s² 2p⁶ 3s¹

Solution:

The electron configuration of potassium (K) is 1s² 2s² 2p⁶ 3s¹.

What is the electron configuration of potassium (K)?

What is the electron configuration of potassium (K)?

Step 1: Identify the atomic number of potassium (K), which is 19. This means potassium has 19 electrons.
Step 2: Fill the electron shells according to the order of energy levels: 1s, 2s, 2p, 3s.
Step 3: Start filling the first shell (1s) with 2 electrons: 1s².
Step 4: Move to the second shell and fill the 2s subshell with 2 electrons: 2s².
Step 5: Fill the 2p subshell with 6 electrons: 2p⁶.
Step 6: Now, move to the third shell and fill the 3s subshell with 1 electron: 3s¹.
Step 7: Combine all the filled subshells to get the complete electron configuration: 1s² 2s² 2p⁶ 3s¹.

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