Determine the Longest Wavelength of Light Required to Remove an Electron

question 20

Multiple Choice

Determine the longest wavelength of light required to remove an electron from a sample of potassium metal,if the binding energy for an electron in K is 1.76 × 10³ kJ/mol.

• A) 147 nm
• B) 68.0 nm
• C) 113 nm
• D) 885 nm
• E) 387 nm

---

Definitions:

Statement of Comprehensive Income

A financial statement that displays all changes in equity of a company that arise from non-owner sources during a specific period, including all revenues and expenses.

Terminal Loss

The difference between UCC and the adjusted cost of disposal when the UCC is greater.

CCA Rate

Capital Cost Allowance rate, which is the rate at which businesses in certain jurisdictions can claim depreciation on assets for tax purposes.

Marginal Tax Rate

The percentage of tax applied to an individual or entity's next dollar of income, showing the impact of the last dollar earned on their tax liability.