The smallest atomic number and atomic weight for a lanthanide is lanthanum itself, element 57.
The smallest atomic size is lutecium element 71; the lanthanides steadily decrease in atomic radius through the series, and the smallest is the last of them.
LU
It is an adjective because if you said It was the heaviest object. The word heaviest is describing the noun: object.
The old man had the heaviest grocery bag.
Lead.
heaviest
No.What_is_the_heaviest_substance_on_the_planet
Because all lanthanide's have almost similar physical as well as chemical properties.
its in the Lanthanide series
No. Americium is an actinide.
Er: Erbium
Noar schiniminoar
Yes, lanthanide and Actinides are transition elements and they are specifically called inner transition elements.
heaviest, heavier
Neodymium is a lanthanide.
57
15
Because of the lanthanide content
f1 to f14