Assertion: lr | /r/HasProperty | group 3 elements
Facets:
value: along with scandium
type: OTHER
value: sometimes
type: TEMPORAL
Source sentences:
text: If lutetium and lawrencium are considered to be group 3 elements, then extrapolation from the Aufbau principle would predict that the next element in the group should be element 153, unpenttrium (Upt).
text: Lawrencium is the final member of the actinide series and is sometimes considered to be a group 3 element, along with scandium, yttrium, and lutetium, as its filled f-shell is expected to make it resemble the 7th-period transition metals.