F-block
Lanthanides and Actinides are placed separately as the properties of these elements is quite different from the elements in periodic table.
At the bottom of the Periodic Table
Lanthanides (elements with atomic number 57-71) and actinides (elements with atomic number 89 to 103) are placed at the bottom of the periodic table.
f-block elements (lanthanides and actinides)
Lanthanides and actinides (or f-block elements).
The periodic table of elements is a chart that organizes the elements and emphasizes their shared traits and commonalities. All the known elements and their atomic number are on the periodic table.
The two rows of elements placed below the periodic table are known as f block elements. The two rows are also known as lanthanides and actinides. In these elements, the electrons are filled in the antepenaltimate f orbital.
The two periods below the periodic table are known as the lanthanides and actinides. These series consist of elements that fall within the f-block of the periodic table.
The two rows of elements at the bottom of the periodic table are the lanthanides and actinides. The lanthanides are elements with atomic numbers 57 to 71, while the actinides are elements with atomic numbers 89 to 103. These rows are known as the f-block elements and are placed below the main body of the periodic table to conserve space.
they termed as lanthanide because the lighter elements in series are chemically similar to lanthanum
f block elements (lanthanides and actinides) are placed below the periodic table
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.