To determine the number of gram atoms (also known as moles) in 69 grams of sodium, you need to use the molar mass of sodium, which is approximately 23 g/mol. By dividing the mass of sodium (69 g) by its molar mass (23 g/mol), you find that there are about 3 moles of sodium. Since 1 mole contains Avogadro's number of atoms, this means there are approximately (3 \times 6.022 \times 10^{23}) atoms of sodium in 69 grams.
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