0
What are the lanthanides and actinides found on the periodic table?
Wiki User
∙ 8y ago
They are found below the Periodic Table because they would take up too much room in the periodic table
Wiki User
∙ 11y ago
Wiki User
∙ 14y agoLanthanides and actinides are under period six and seven eventhough they were part of period six and seven. the best way to find Lanthanides and actinides is to find period six or seven. If you go to Barium or Radium, you will have a line that connects that elements and goes down and leads to a another two lines with names of elements. The top one is Lanthanides and bottom is the actinides.
Wiki User
∙ 6y agoThe Lanthalides, with atomic numbers 57 to 71, are between Barium and Hafnium. The Actinides, numbers 89 to 103, are between Radium and Rutherfordium. In the layout of the table, the first member of each group (after which the group is named) is in its normal spot. The rest appear as two rows below the last known element - currently Organesson (no 118).
Wiki User
∙ 10y agoThey are placed separately, in two rows, at the bottom of periodic table.
Wiki User
∙ 8y agoThese classes of metals are placed outside the main table in the f block. The lanthanoids are elements 57-71, and the actinoids are elements 89-103.
Wiki User
∙ 7y agoLanthanoids and actinoids are placed in separate rows under the periodic table.
Wiki User
∙ 6y agoThe lanthanides and the actinides are placed in two separated rows under the periodic table.
Wiki User
∙ 13y agothey are not placed from elements 57-70.
Add your answer:
Earn +20 pts
Where are the lanthanides and actinides placed on the periodic table?
At the bottom of the Periodic Table
What are the two periods of elements below the periodic table called?
The Lanthanides and the Actinides.
What two groups are removed from the main body of the periodic table?
LAnthanides and actinides
Are group 12 on the periodic table lanthandies or actinides?
No. There are two rows at the bottom of the periodic table. the first row elements are called lanthanides and the second row elements are called actinides.
Why are the lanthanides and actinides placed in the periodic table and why?
The lanthanides are elements 57-71 and are inserted after barium (Ba) on the periodic table. The actinides are elements 89-103 and are inserted after radium (Ra) on the periodic table. The reason they are there is because of the filling of electron orbitals in the atoms of the elements. There are four known orbitals, the s, p, d, and f orbitals. The lanthanide and actinide blocks are the result of electrons being inserted into the f orbitals.
Where are landthanides and actinides actinides placed in the periodic table?
Lanthanides and Actinides are placed separately as the properties of these elements is quite different from the elements in periodic table.
What two elements are shown at the bottom of the periodic table?
Lanthanides and Actinides.
What elements on the periodic table is a radioactive element?
Lanthanides and Actinides probably
What is the group number for Lanthanides and Actinides?
Rare Earth elements or lanthanides are placed in the period 6 of the periodic table of Mendeleev. Actinoids are placed in the period 7 of the periodic table of Mendeleev.
Where are the lanthanides and actinides placed on the periodic table?
At the bottom of the Periodic Table
What are at the bottom of the periodic table?
The Lanthanides and the Actinides have been moved in the periodic table simply to save space. --PainRain
What are the element at the bottom of the periodic table?
Lanthanides and actinides (or f-block elements).
What are the two periods of elements below the periodic table called?
The Lanthanides and the Actinides.
What two chunks of the periodic table are at the bottom to make it smaller?
Lanthanides & Actinides
Where is lanthanides and actinides in the periodic table?
The 2 bottom rows separated from the rest
Where are the lanthanides and actinides places in the periodic table?
they are not placed from elements 57-70.
What two groups are removed from the main body of the periodic table?
LAnthanides and actinides
