A Explain What Is Meant by the Term "Unit Cell

question 68

Essay

a. Explain what is meant by the term "unit cell".
b. Copper metal has a face-centered cubic unit cell. The edge length of the unit cell is 361 pm, and the atomic weight of copper is 63.55 amu. Calculate the density of the copper in g/cm³.
(1 amu = 1.661 × 10^-24 g.)
c. From the data in (b), calculate the radius of a copper atom in pm.

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Definitions:

Semiannual

Occurring twice a year; a term often used in the context of interest payments, dividends, or certain financial reporting periods.

Interest Expense

The cost incurred by an entity for borrowed funds, frequently appearing as a line item on the income statement.

Market Rate

The prevailing interest rate available in the marketplace for securities or loans, varying with the demand, supply, and risk.

Semiannual Interest Payment

Interest payments made twice a year on a loan or bond.