
Rewrite this equation with the atomic mass number and the atomic number
(nuclear charge) explicit for each item in the equation:

The equation must balance so that the total atomic mass number and the
total atomic
number is the same on each side.
12 + 0 + 0 = 12
6 - 1 + 0 = 5
Equation is:

Go to the Periodic Table to determine the unknown.
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