Terne, Originally an Alloy of Lead (Pb; R = 154

question 160

Multiple Choice

Terne, originally an alloy of lead (Pb; r = 154 pm, fcc) and tin( Sn; r =140 pm) , appears to contain approximately 7 tin atoms for every 16 lead atoms.Which of the following statements regarding the alloy is correct?

• A)It is probably an interstitial alloy with tin occupying some of the octahedral holes.
• B)It is probably an interstitial alloy with tin occupying some of the tetrahedral holes.
• C)It is probably an interstitial alloy with tin occupying some of the cubic holes.
• D)It is probably a substitutional alloy.
• E)It is approximately 70% Pb and 30% Sn.

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