The element potassium has a molar mass of 39.098 grams/mole and crystallizes in a BCC unit cell with a density of 0.856 g/cm3. Calculate the radius in pm of a K atom.
Added by Cristian B.
Step 1
First, we need to find the volume of the unit cell. We can use the formula: Density = Mass / Volume We know the density (0.856 g/cm³) and the molar mass (39.098 g/mol) of potassium. We also know that there are 2 atoms in a BCC unit cell. So, we can find the mass Show more…
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