An Energy of 122 EV Is Needed to Remove an Electron

question 28

Multiple Choice

An energy of 122 eV is needed to remove an electron from the n = 1 state of a lithium atom. If a single photon accomplishes this task,what wavelength is needed? (h = 6.63 x 10^-34 J*s,c = 3.00 x 10⁸ m/s,1 eV = 1.6 x 10^-19 J,and 1 nm = 10^-9 m)

• A)13.2 nm
• B)12.2 nm
• C)11.2 nm
• D)10.2 nm

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Definitions:

Income Statement

A financial statement that reports a company's financial performance over a specific accounting period, detailing revenues, expenses, and profit or loss.

Year-End Closing Process

The Year-End Closing Process involves finalizing a company's financial activities for the year, updating accounts, and preparing financial statements.

Net Income

The final earnings of a corporation once all costs, taxes, and expenses are subtracted from gross revenue.

Retained Earnings

Retained Earnings are the portion of a company's profits that are not distributed as dividends to shareholders but are instead reinvested in the business.