All of these elements are radioactive, and two of the elements, uranium and plutonium.
17+ Actinide Series Elements. This tutorial introduces actinide metals of the periodic table. There are 15 actinide elements.
Actinides Actinide Series Element Properties from www.thoughtco.com
The actinide series is named after actinium. The actinoid /ˈæktɪnɔɪd/ series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium. Of the actinide series of elements, all except actinium, thorium, protactinium, and uranium are considered to be synthetic elements because they are not found in nature in appreciable amounts.
All actinide series elements are radioactive in nature, they release a large amount of energy on radioactive decay.
All the elements in the actinide series are heavy because of their large atomic mass. Only four of them occur in nature, while the. The actinide series is named after actinium. Actinoid element, also called actinide element, any of a series of 15 consecutive chemical elements in the periodic table from actinium to lawrencium these elements are also called the actinide elements.
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