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If an atom contains 7 protons, 15 neutrons, and 7 electrons, its atomic number would be:

User Tsiki
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Answer: Nitrogen has an atomic number of 7 (Z=7) because it has 7 protons in its nucleus. Some nitrogen atoms have an atomic mass number of 15 (A=15).

Step-by-step explanation:

User David Leuliette
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