To calculate the mass of a single atom, first look up the atomic mass of from the periodic table. This is also the mass in grams of 1 mole of .
Use Avogadro's number to find the mass of a single atom.
Simplify the expression.
Divide using scientific notation.
Group coefficients together and exponents together to divide numbers in scientific notation.
Divide by .
Move to the numerator using the negative exponent rule .
Write in proper scientific notation.