Question
An electron is confined to a box of length $1.0 \mathrm{~nm}$. What is the magnitude of its momentum in the $n=4$ state?
Step 1
We can use the formula for the energy of an electron in a one-dimensional box: E_n = (n^2 * h^2) / (8 * m * L^2) where E_n is the energy of the electron in the nth state, n is the quantum number (4 in this case), h is the Planck's constant (6.626 x 10^-34 Js), m Show more…
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