A Certain Solid Metallic Element Has a Density 7

question 21

Multiple Choice

A certain solid metallic element has a density 7.87 g/cm³ and a molar mass of 55.85 g/mol. It crystallizes with a cubic unit cell, with an edge length of 286.7 pm. Calculate the number of atoms per unit cell.

• A)1
• B)2
• C)3
• D)4
• E)6

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Definitions:

Closing Entries

At the close of an accounting period, transactions are documented to move balances from temporary to permanent accounts.

Closing Entries

Journal entries made at the end of an accounting period to transfer temporary accounts to permanent accounts.

Income Statement

A financial statement that presents the revenues, expenses, and profits or losses of a company over a specified period, typically a quarter or year.

End-of-Year Spreadsheet

A document summarizing financial and accounting information at the conclusion of the fiscal year, aiding in analysis and decision-making.