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Part A Which electron is, on average, closer to the nucleus: an electron in a 2s orbital or an electron in a 3s orbital? Match the items in the left column to the appropriate blanks in the sentences on the right. n Reset Help The size of the orbital is determined by the decreases orbital quantum number, so the size of the increases as this value increases. Therefore, an electron in a closer to the nucleus than is an electron in a orbital is mi orbital. 3s 2s Submit Request Annu