### What do the superscript and subscript in the nota…

01:14
Case Western Reserve University
Problem 61

How can you determine the number of neutrons in an
atom if its mass number and its atomic number are
known.

Number of neutrons $=$ mass number - atomic number.

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## Video Transcript

the atomic number describes the number of protons. We consider electrons to have virtually no mass, so we can ignore them. In this case. Now, you would take the Elektronik Mass minus the atomic number in order to get the neutrons.