A student says: The n = 2 level, at -3.4 eV, has less energy than the ground state, at -13.6 eV, because 3.4 eV is smaller than 13.6 eV. What is wrong?

PhysicsMediumHigh School (11–12)Modern Physics › Atoms and Atomic Spectra

A student says: The $n = 2$ level, at $-3.4\ \text{eV}$ , has less energy than the ground state, at $-13.6\ \text{eV}$ , because $3.4\ \text{eV}$ is smaller than $13.6\ \text{eV}$ . What is wrong?

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