Assertion: metal's state | /r/MadeOf | a 4f electron
Facets:
Source sentences:
text: The binding energies of the 4f levels of excited states of lanthanum that contain a 4f electron clearly show that lanthanum's 4f orbitals are not hydrogenic.
text: The binding energies of the 4f levels of excited states of lanthanum that contain a 4f electron clearly show that lanthanum's 4f orbitals are not hydrogenic.