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An atom of nitrogen (n) has a mass number of 15. This atom Blank______. multiple select question. contains 8 neutrons in its nucleus has 15 electrons has an atomic number of 15 contains 15 neutrons in its nucleus contains 7 protons in its nucleus
Accepted Answer
An atom of nitrogen (N) has a mass number of 15. This atom contains 7 protons in its nucleus and contains 8 neutrons in its nucleus.
Here's why:
Mass Number: The mass number is the sum of protons and neutrons in an atom's nucleus. Since the mass number is 15, and nitrogen always has 7 protons (atomic number), there must be 8 neutrons (15 - 7 = 8).
Atomic Number: The atomic number defines the element and is equal to the number of protons. Nitrogen's atomic number is always 7.
Electrons: In a neutral atom, the number of electrons is equal to the number of protons. Therefore, this nitrogen atom has 7 electrons.
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