What is the energy required to remove the electron from a hydrogen atom in the $n = 11$ state?
A) $12.4 \mathrm { eV }$
B) $1.24 \mathrm { eV }$
C) $13.5 \mathrm { eV }$
D) $0.141 \mathrm { eV }$
E) $0.112 \mathrm { eV }$

Question

Quizplus · Accepted Answer

The energy required to remove an electron from a hydrogen atom in the $n$ state is given by $E = -13.6 \, \text{eV} / n^2$. For $n = 11$, $E = -13.6 / 11^2 = -0.112 \, \text{eV}$. The energy required to remove the electron is the positive value, $0.112 \, \text{eV}$.

What Is the Energy Required to Remove the Electron from a Hydrogen