1. Find the molar mass of lead:
* The molar mass of lead (Pb) is 207.2 g/mol (you can find this on the periodic table).
2. Calculate the number of moles of lead:
* Moles = mass / molar mass
* Moles = 103.6 g / 207.2 g/mol
* Moles = 0.5 mol
3. Use Avogadro's number to find the number of atoms:
* Avogadro's number is 6.022 x 10^23 atoms/mol.
* Number of atoms = moles * Avogadro's number
* Number of atoms = 0.5 mol * 6.022 x 10^23 atoms/mol
* Number of atoms = 3.011 x 10^23 atoms
Therefore, there are approximately 3.011 x 10^23 atoms in 103.6 grams of lead.
