Assertion: hydrogen atom's electron | /r/HasProperty | filled to lutetium
Facets:
value: progressively
type: MANNER
value: from cerium
type: OTHER
Source sentences:
text: The electrons in the 4f-subshell, which is progressively filled from cerium (Z = 58) to lutetium (Z = 71), are not particularly effective at shielding the increasing nuclear charge from the sub-shells further out.