Elemental magnesium crystallizes in a face-centered cubic lattice. The density o

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Elemental magnesium crystallizes in a face-centered cubic lattice. The density of magnesium is 1.738 g/cm. The unit cell length is 4.80 × 102 pm. What is the atomic radius of Mg? A) 340 pm B) 215 pm C) 242 pnm D) 126 pnm E) 170 pm ANS: E KEY: general chemistry | phases | solid | calculations with unit cell dimensions PTS: 1 DIF: difficult TOP: 16.4 Chromium metal crystallizes as a body-centered cubic lattice. If the atomic radius of Cr is 1.25 angstroms, what is the density of Cr metal in grams per cubic centimeter? A) 2.76 g/cm3 B) 5.52 g/cm C) 7.18 g/cm D) 3.59 g/cm E) 7.81 g/cm PTS: 1 DIF: difficult TOP: 16.4 ANS: C KEY: general chemistry | phases |solid| calculations with unit cell dimensions

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Elemental magnesium crystallizes in a face-centered cubic lattice. The density o

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