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www.thoughtco.com/actinides-606643

The actinides share common properties, distinct from other metallic elements. Get facts about this interesting element group. The actinides share common properties, distinct from other metallic elements. Get facts about this interesting element group. Actinides (Actinide Series) Search the site GO. Science.

www.ducksters.com/.../chemistry/lanthanides_and_actinides.php

The actinides are most known for the elements uranium and plutonium which are used in nuclear reactors and nuclear bombs. Interesting Facts about Lanthanides and Actinides The lanthanides and actinides are located mostly in the "f-block" of the periodic table.

en.wikipedia.org/wiki/Actinide

The actinide / ˈ æ k t ɪ n aɪ d / or actinoid / ˈ æ k t ɪ n ɔɪ d / (IUPAC nomenclature) series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium.

www.thoughtco.com/interesting-facts-about-actinium-603672

Actinium is a radioactive metal that is the first element of the actinide series.It's sometimes considered the third element in Row 7 (last row) of the periodic table or in Group 3 (IIIB), depending on which chemist you ask. Here are 10 interesting facts about actinium.

kids.kiddle.co/Actinide

Actinide facts for kids. Kids Encyclopedia Facts. Location of actinides on the periodic table. The actinide series is the 15 chemical elements between actinium and lawrencium on the periodic table. They have the atomic numbers between 89 - 103. The actinide series is named after actinium.

www.10interestingfacts.com/facts-about-actinium.html

Facts about actinium – Actinium Element Facts about actinium 3: Actinides. The first element of the actinides, actinium gave the group its name, much as lanthanum had done for the lanthanides. The group of elements is more diverse than the lanthanides and therefore it was not until 1945 that Glenn T. Seaborg proposed the most significanct ...

www.encyclopedia.com/.../actinide-series

Likewise the actinides can be defined as those metals that fill the 5f orbital; but again, because actinium exhibits similar properties, it is usually included with the actinides. Isotopes One of the distinguishing factors in the actinide family is its great number of radioactive isotopes.

www.encyclopedia.com/.../lanthanide-series

Lanthanides and Actinides. New York: Oxford University Press, 1991. Heiserman, David L. Exploring Chemical Elements and Their Compounds. ... lanthanide series (lanthanide elements, rare-earth metals) Series of 15 rare metallic elements with atomic numbers from 57 to 71.

www.infoplease.com/.../compounds-and-elements/actinide-series

actinide series, a series of radioactive metallic elements in Group 3 of the periodic table . Members of the series are often called actinides, although actinium (at. no. 89) is not always considered a member of the series. The series always includes the 14 elements with atomic numbers 90 through ...

www.livescience.com/39685-facts-about-actinium.html

Facts About Actinium. ... Actinium is the first of the actinide series of elements. The chemical behavior of actinium is similar to rare earths, especially lanthanum. Actinium is about 150 times ...