You Want to Confine an Electron in a Box (An

question 17

Multiple Choice

You want to confine an electron in a box (an infinite well) so that its ground state energy is 5.0 × 10^-18 J.What should be the length of the box? (h = 6.626 × 10^-34 J ∙ s, m_el = 9.11 × 10^-31 kg)

• A)0.11 nm
• B)0.22 nm
• C)0.15 nm
• D)0.18 nm

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