Chemistry, 26.05.2021 20:00, destinyd10189

An atom of an element contains 12 protons, 12 neutrons, and 12 electrons. This element is in Group A) 1 B) 2 C) 6 D) 18

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An atom of an element contains 12 protons, 12 neutrons, and 12 electrons. This element is in Group A...