Question:

If an atom of an element has a mass number of 31 and 16 neutrons in its nucleus, what is the atomic number of the element?

Answer:

Number of Neutrons = Mass Number - Atomic Number, so 16=31-x, therefore the atomic number is 15.

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mass number neutrons atomic number atomic number Atomic mass Atomic number Mass number Neutron capture Neutron diffraction Neutron Chemical element Hydrogen Atomic number Chemical element Hydrogen Atomic number Chemistry Physics Nuclear chemistry Chemical properties Nuclear physics Mass Atom Technology Internet

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