Ok since I took chemistry back in middle school, I'll tell you #1: Lanthanum and Actinium are the beginning elements of the Actinide and Lanthanide series, that's why the series is named after them #2: They are chemically arranged differently (Ex:The # of protons and neutrons and electrons) #3 If they were in the series, why would the series be named after them? Hope this helped!
they termed as lanthanide because the lighter elements in series are chemically similar to lanthanum
The lanthanides get their name from the element lanthanum, which was the first in the series to be discovered. The actinides get their name from actinium, which was the first element in this series to be discovered.
Lanthanum and lutetium: lantanides group Actinium and lawrentium: actinides group
Actinuim is a member of the family of actinides.
The lanthanide and actinide series. Trait of lanthanide: Lanthanum, element 57. Trait of actinide: actinium, element 89.
Elements La(Lanthanum)-Lu(Lutetium) are the lanthanides. Elements Ac(Actinium)-Lr(Lawrencium) are the actinides.
they termed as lanthanide because the lighter elements in series are chemically similar to lanthanum
There are 15 lanthanides (from lanthanum to lutetium) and 15 actinides (from actinium to lawrencium) in the periodic table. These elements belong to the f-block of the periodic table and have unique properties due to their electron configurations.
The lanthanides get their name from the element lanthanum, which was the first in the series to be discovered. The actinides get their name from actinium, which was the first element in this series to be discovered.
Lanthanum and lutetium: lantanides group Actinium and lawrentium: actinides group
Actinuim is a member of the family of actinides.
Actinuim is a member of the family of actinides. Actinium is a solid metal, radioactive with the atomic number 89.
The lanthanide and actinide series. Trait of lanthanide: Lanthanum, element 57. Trait of actinide: actinium, element 89.
Lanthanum (La) and actinium (Ac) are two chemical elements, solid metals.
After the IUPAC nomenclature lanthanum is a lanthanoid and actinium is an actinoid.
Lanthanum and actinium have different properties. So, they are kept apart from the periodic table.
K. W. Bagnall has written: 'Lanthanides and actinides' -- subject(s): Actinide elements, Rare earth metals 'Chemistry of the rare radioelements: polonium-actinium' -- subject(s): Actinium, Polonium, Radiochemistry