Question

potassiums electron configuration is (1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{1}). potassium has ___ valence electron(s). enter the answer check it

Explanation:

Step1: Identify valence shell

Valence electrons are in the outermost shell. For potassium (\(K\)), electron configuration is \(1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{1}\). The outermost shell is the \(4s\) shell.

Step2: Count electrons in valence shell

The \(4s\) shell has \(1\) electron.

Answer:

\(1\)