QQuestionChemistry
QuestionChemistry
Identify the subshell from which an electron is removed to form a cation.
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Answer
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Step 1To identify the subshell from which an electron is removed to form a cation, we need to understand that the process of forming a cation involves losing electrons.
In this case, we are looking for the subshell with the highest number of electrons, as those are the ones most likely to be lost.
Step 2
Recall the order of filling subshells: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, ... This is known as the Aufbau principle.
Final Answer
An electron is removed from the 3s subshell to form the Na+ cation.
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