Determine the Longest Wavelength of Light Required to Remove an Electron

question 23

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^-1.

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

---

Definitions:

Remember

The cognitive process of recalling information or experiences previously learned or encountered.

Active Listening

The practice of fully concentrating on what is being said rather than just passively hearing the message, involving feedback and engagement.

Receptive Mind-Set

An attitude or approach characterized by being open and willing to consider or accept new ideas and information.

Appearance

The way that someone or something looks to other people, including physical presentation and attire.