Flashcard 11 - Subtest II: Science Flashcard Set for the CSET Multiple Subjects Test

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The correct answer is:

23


Explanation:

In a neutral atom, the number of electrons is equal to the number of protons, but in a positive ion, the number of electrons is less than the number of protons. A neutral atom of Fe would have 26 electrons, while the ion \(Fe^{3+}\) has \(26-3=23\) electrons.

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