Determine the Radius of an Al Atom (In Pm)if the Density

question 19

Multiple Choice

Determine the radius of an Al atom (in pm) if the density of aluminum is 2.71 g/cm³.Aluminum crystallizes in a face centered cubic structure with an edge length of 2 r.

• A) 143 pm
• B) 227 pm
• C) 96 pm
• D) 172 pm
• E) 193 pm

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