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Nitrogen is a non metal element. Mass number of it is 14.

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9y ago
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3w ago

The Atomic Mass number A is the total number of protons and neutrons in an atom's nucleus. For nitrogen (N), the atomic number (number of protons) is 7. If it has 7 neutrons (designated as "7n"), then the atomic mass number A would be 14 (7 protons + 7 neutrons).

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Q: What is the atomic mass number A for N with 7n?
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