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What is 1 + 3?
determining the number of protons, nuetrons, and electrons are in a element
where is the atomic mass located?
the bottem number on the cell of the periodic table
where is the atomic number?
on top of the cell on the periodic table
what does the atomic number represent?
number of protons, and electrons.
how do you find the number of nuetrons?
subtract the atomic number from atomic mass