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dgaf
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What are all the elements of radioactive?
Uranium.
Are radioactive elements made in a laboratory?
What an interesting question. The answer is however complex.It is possible to make small amounts of some radioactive elements or radioactive isotopes of some elements in a laboratory (usually involving a nuclear pile or an accelerator). For instance the element Plutonium is made this way.(Other radioactive elements are produced naturally by the radioactive decay of heavier radioactive elements)However, making a radioactive element or isotope from scratch requires the application of an enormous amount of energy. The place where all elements heavier than the element Iron (Fe - Atomic number 26) are made is in stellar explosions, the death of stars 8 or more times more massive than our Sun, called "supernovas".It is in supernova explosions that the radioactive elements are made.
What is a radium and a polonium?
Radium and polonium are radioactive natural chemical elements.
One of the most radioactive elements discovered by the curies was uranium?
No. The Curies did not discover uranium. They discovered polonium and radium, of which polonium is more radioactive.
Determining the dates of old objects by using radioactive elements is called dating?
radiometric
What is the series of radioactive elements?
your mother
What family is radioactive elements?
The Actinide series.
What family is all radioactive elements?
The Actinide series.
What are the unique properties of actinide metals?
They are mostly Synthetic elements (when nuclear particles are forced to crash into one another by a particle accelerator (machine)). These Elements are Radioactive.
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.
Are all actinids radioactive?
There are a total of 15 actinides in the actinide series and each are chemical elements with metallic properties. All of the actinide elements are radioactive and upon radioactive decay they release energy.
What are the radioactive elements with atomic number from 90 to 103 in the periodic table called?
Actinide Series.
What are the atomic numbers 81-100?
Elements 89-100 are the Actinide series of elements, most of which are radioactive, and some of which can only be made artificially. Elements 81-88 are also likely to be radioactive, but are naturally occurring.
What is a actinide?
Any of a series of chemically similar, radioactive elements with atomic numbers ranging from 89 (actinium) through 103 (lawrencium). they are outer transition elements All of these elements are radioactive, and two of the elements, uranium and plutonium, are used to generate nuclear energy
Radioactive elements comprise a majority?
Yes. Stable elements are 83 elements. all elements above that of atomic number 83 (Bismuth) are radioactive. Radioactive isotopes are of the order of 1500 radioactive isotope.
What elements is radioactive and synthetic barrium cesium currium and xenon?
Curium {Note correct spelling} is only element in the list given that is radioactive and synthetic.^ not correct answer and not even spelled right the correct answer is "lawrencium"The rare earth elements are located at the bottom of the periodic table and are comprised of the lanthanoid series and the actinoid series.The actinoid series is the second row of rare earth elements. All of these elements are radioactive, and all of these elements (except actinium, thorium, protactinium, and uranium) are synthetic.
Do trace elements have to be radioactive?
No, trace elements are not necessarily radioactive. A link to a list of elements that have no natural radioactive isotopes is at a related question, below.
