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Actinium, thorium, uranium are natural chemical elements; plutonium and neptunium were discovered in extremely small concentrations in some uranium minerals but they are obtained artificially in great quantities. Am, Cm, Bk, Cf, Es, Fm, Md, No, Lr are man made chemical elements
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What is the name of the series which contains most of the synthetic and radioactive elements?
All of the actinides are radioactive, and almost all are synthetic.
What family is Americium in?
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.
Is actinide considered a synthetic element?
Actinide is not an element, but is a series of elements. 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.
Are actinides and lanthanide elements transition metals?
no they are not. actinide is not part of the transition metals.
What are the names of t he groups to which many synthetic elements belong?
Many synthetic elements belong to the actinides and transactinides groups in the periodic table. The actinides include elements like uranium and plutonium, while the transactinides encompass elements beyond uranium, such as copernicium and oganesson. These groups contain elements that are primarily radioactive and have no stable isotopes.
Which elements have no useful purposes at all?
All elements have a useful purpose, including the synthetic actinides that have half-lives measured in milliseconds.
Are most of the actinides occur naturally in earth's crust?
No, most of the actinides do not occur naturally in Earth's crust. Actinides are a group of elements that are mostly synthetic or man-made through nuclear reactions. Only a few actinides, like uranium and thorium, occur naturally in significant quantities in the Earth's crust.
What are Lanthanides and Actinides?
Elements. The Lanthanides are: Atomic No.575859606162636465666768697071NameLaCePrNdPmSmEuGdTbDyHoErTmYbLu The Actinides are:Atomic No.8990919293949596979899100101102103NameAcThPaUNpPuAmCmBkCfEsFmMdNoLr
What the characteristics of actinides?
actinides are the group of elements in the periodic table,see..........
A property of all actinides is that they are all what?
Actinoids are: Th, Pa, U, Np, Am, Cm, Bk, Cf, Es, Fm, Md, No, Lr.
Synthetic elements comprise a majority of which of the following groups?
Synthetic elements comprise a majority of the transactinide elements (elements beyond atomic number 103) in the periodic table. These elements are created artificially in laboratories through nuclear reactions and have very short half-lives due to their instability.
Is a characteristic of the actinides?
All actinides are radioactive elements and some are man made.
