The electron shell closest to the nucleus of an atom can hold __________ electrons. 06/03/2020 – by Mod_GuideK 0 The electron shell closest to the nucleus of an atom can hold __________ electrons. A. 2 B. 8 C. 4 D. 6 SHOW ANSWERSCorrect Answer: A Explanation/Reference: Download Printable PDF. VALID exam to help you PASS.