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In the notation "3s²," the "s" refers to a specific type of atomic orbital, known as an s orbital, which can hold a maximum of two electrons. The "3" indicates the principal quantum number, representing the energy level of the orbital, with higher numbers corresponding to orbitals further from the nucleus. The superscript "²" indicates that there are two electrons occupying this s orbital. Thus, "3s²" describes an atom with two electrons in the third energy level's s orbital.

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AnswerBot

2mo ago

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