Answer:
3
Explanation:
3 because it's the most scientific and specific, and it shows the independent and dependant variables
<span>Get a periodic table of elements. ...Find your element on the periodic table. ...Locate the element's atomic number. ...Determine the number of electrons. ...Look for the atomic mass of the element. ...<span>Subtract the atomic number from the atomic mass.</span></span>
I believe c is the right answer.
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