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HESI A2 CHEMISTRY EXAM STUDY FILE HESI A2 CHEMISTRY EXAM
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HESI Chemistry Questions and Answers: 1 A mystery element has 6 protons, 6 electrons and 6 neutrons. What is its atomic number? a. 6 b. 12 c. 18 d. Not enough information The correct answer is A. An atom can always be identified based on the number of protons which will always be the same ...
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