Estimate the Density of Magnesium Oxide from Its Crystal Structure

question 20

Multiple Choice

Estimate the density of magnesium oxide from its crystal structure.The radii of Mg²⁺ and O^2 are 72 and 140 pm,respectively.

• A)3.51 g  cm ^{ 3}
• B)14.9 g  cm ^{ 3}
• C)21.1 g  cm ^{ 3}
• D)1.76 g  cm ^{ 3}
• E)0.878 g  cm ^{ 3}

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