Part A Estimate the volume, V, of one sodium atom (Na) using its metallic radius of 186 pm. Express your answer with the appropriate units. V = 2.70x107 pm Submit Hints My Answers Give Up Review Part Correct If you were as big as the Empire State Building, a sodium atom would be slightly smaller than a grain of sand. Part B Using your answer from Part A, calculate the volume of a mole of Na atoms (in cm/mol). Assume that the entire volume is occupied by Na atoms leaving no gaps or holes between adjacent atoms. Express your answer with the appropriate units. molar volume = HA Value Units Submit Hints My Answers ive Up Review Part DW ?