Assertion: hydrogen atom's electron | /r/AtLocation | bound state
Facets:
Source sentences:
text: Notice that this energy is negative because the electron is in a bound state — you’d have to add energy to the electron to free it from the hydrogen atom.
text: Since the ground state energy of the hydrogen atom is -13.6 eV (negative since the electron is in a bound state so that energy must be supplied to free the electron), the incident photon must have an energy of E = 10.1 eV + 13.6 eV = 23.7 eV, where