Problem: Lithium has two naturally occurring isotopes: Li-6 (natural abundance 7.5%) and Li-7 (natural abundance 92.5%).With circles to represent protons and squares to represent neutrons, which image depicts Li-7?

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Element Symbol → X–A ← Mass Number


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Lithium has two naturally occurring isotopes: Li-6 (natural abundance 7.5%) and Li-7 (natural abundance 92.5%).

With circles to represent protons and squares to represent neutrons, which image depicts Li-7?

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