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Actinoids is series of chemical elements; lanthanoids is an other different series.

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11y ago

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Is americium a rare element series?

Americium is a member of the actinides group.


Which two actinides occur naturally?

Uranium and thorium are the two actinides that occur naturally in the Earth's crust. They are found in low concentrations and have important roles in various nuclear reactions and processes.


What is the special about the lanthandies and actinides?

Lanthanides and actinides are two series of elements located at the bottom of the periodic table. They are known for their unique electron configurations, with the lanthanides having partially filled 4f orbitals and the actinides having partially filled 5f orbitals. These series contain many rare earth elements and heavy metals with important industrial, medical, and nuclear applications.


Which subshell is represented by the actinides family?

The actinides family corresponds to the 5f subshell. This subshell can hold a maximum of 14 electrons and is located in the seventh period of the periodic table. The actinides are a series of elements with atomic numbers 89 to 103.


Are actinides and lanthanide elements transition metals?

no they are not. actinide is not part of the transition metals.


Is helium a family name or a rare earth element series?

family name of rare earth element series of helium


Rare earth element in the lanthanide series?

Earth


Does tantalum have a rare earth element series?

No, it does not.


What are the actinides in the Periodic Table of Elements?

The actinide series is a group of elements in the periodic table that includes actinium, thorium, uranium, and all elements from atomic number 89 (actinium) to 103 (lawrencium). These elements are all radioactive and have similar chemical properties.


Is the fourth member of the actinides series?

NeptuniumNeptunium


What are lanthinides and actinides?

I dunnu, I googled the same thing. This guys notes says "A group of elements in the first row of the rare earth elementsin the periodic table"


Why are lanthanides and actinides place at the bottom?

Lanthanides and actinides are placed at the bottom of the periodic table to avoid significantly expanding the table and making it less practical. Placing these two series below the main body of the table helps keep the table compact and easier to use. Additionally, these elements have similar electron configurations, which is why they are grouped together in this way.