To determine the mass of 16 atoms of copper in grams, you need to know the atomic mass of copper and use the concept of molar mass.
The atomic mass of copper (Cu) is approximately 63.55 atomic mass units (u) as listed on the periodic table.
To convert atomic mass units to grams, you can use the concept of Avogadro's number, which states that 1 mole of any substance contains 6.022 x 10^23 entities (atoms, molecules, etc.). This is known as Avogadro's constant.
So, the molar mass of copper can be calculated as follows:
Molar mass of copper = Atomic mass of copper (in grams) / Avogadro's number
Molar mass of copper = 63.55 g/mol / (6.022 x 10^23 mol^(-1))
Once you have the molar mass of copper, you can calculate the mass of 16 atoms:
Mass of 16 atoms of copper = (Molar mass of copper) x (16 atoms)
Please note that the molar mass of copper is approximate, and the actual value may have more decimal places.