The first element in the actinide series is actinium , a chemical element in the Periodic Table that has the symbol Ac and atomic number 89.
The actinide (or actinoid) series encompasses the 15 chemical elements that lie between actinium and lawrencium on the periodic table , with atomic numbers 89-103.
The actinides get their name from the first element in the series , actinium.
The first actinide element is actinium, which has the atomic number 89. It is a radioactive element that was discovered in 1899 by André-Louis Debierne. Actinium is commonly used in medicine for cancer treatment and as a neutron source in scientific research.
radioactive elements that belong to the periodic table group of actinides. They have increasing atomic numbers starting from actinium (Z=89) to lawrencium (Z=103). Actinides are often used in nuclear reactors and are known for their radioactive properties.
Neptunium is a member of the actinides group.
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.
Element P (phosphorus) has a lower first ionization energy than element S (sulfur).
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.
Element groups
Thorium
Actinides family
The Actinides(Actinoids)
The other elements of the actinides group.
Americium is a member of the actinides group.
Actinium belongs to actinides. It has atomic no. 89
Lanthanides and Actinides probably
Americium is in the Actinide family of elements. It is a synthetic element with the symbol Am and atomic number 95. Actinides are a series of elements in the periodic table that have properties similar to actinium.
Curium is an artificial element, radioactive, unstable, metal , solid, a member of the actinides group.
Uranium is a natural chemical element, situated in the actinides group; uranium is a solid metal, radioactive.