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Where are the unstable and radioactive elements found in the periodic table?
Wiki User
∙ 14y ago
All elements have unstable isotopes so the answer would be everywhere. However if you mean 'elements with only unstable isotopes' then
- number 43 Technetium
- number 61 Promethium
- everything above 92
Wiki User
∙ 14y ago
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Region of the periodic table where most radioactive elements are found?
Group 3 of the periodic table contains many of the radioactive elements.
What is a synthesized element?
Synthetic elements are unstable chemical elements not naturally found on the earth. They are synthesized in the laboratory. All of them are unstable and radioactive in nature, which means they emit radiations and decay into other elements.
What state was californium found in?
Californium is a solid metal, radioactive, unstable.
Which can be found on a periodic table elements compounds or mixtures?
Elements are found on periodic table. Compounds are not present on periodic table. The table does not contains mixture.Elements can be found on a periodic table. Compounds can be made by bonding two or more elements. But they are not depicted on the periodic table.
Is Mercury unstable and also radioactive?
No the element Mercury is not Radioactive. None of the mercury ordinarily found in nature is radioactive. Like all elements, there are synthetic radioactive isotopes of mercury.
What are radioactive elements on the periodic table?
In general, the elements with higher atomic numbers are the most radioactive and they are found at the bottom of the Periodic Table of Elements
Region of the periodic table where most radioactive elements are found?
Group 3 of the periodic table contains many of the radioactive elements.
What are synthesizers?
Synthetic elements are unstable chemical elements not naturally found on the earth. They are synthesized in the laboratory. All of them are unstable and radioactive in nature, which means they emit radiations and decay into other elements.
What period on the periodic table of elements contains radioactive elements and what are they called?
it was found in 1896. you can not find them on the periodic table. you may find some, but often some are.
Which group contains only radioactive elements?
The actinoids (formerly actinides) are all unstable metallic elements. The period 7 elements with atomic numbers from 89 (actinium, for which the group is named) through 103 comprise these elements. A link can be found below.
Elements that is not found in living system?
Any element above Uranium in the periodic table of elements is too unstable to occur in nature.
What is a synthesized element?
Synthetic elements are unstable chemical elements not naturally found on the earth. They are synthesized in the laboratory. All of them are unstable and radioactive in nature, which means they emit radiations and decay into other elements.
Where is acinium found?
Actinium is separated from pitchblende. Actinium, AC, is found in uranium ore, a product of radioactive decay of uranium and ?æother unstable elements.
Are the most stable elements you the periodic table are found in the family of alkali metals?
The most stable elements are found in the Noble Gases, in group 8 or group 0. The most UNstable elements are found in the alkali metals.
Are all the radioactive elements found in the last group of the Periodic Table?
No, many other elements are radioactive or have radioactive isotopes. Examples of this are carbon 14, which is used in carbon dating, Radon, Krypton, Hydrogen, Iodine, and many others.
Elements after which element are radioactive?
The atoms that are radioactive are those with unstable nuclei. There is no easy way to tell which is which, so the isotope has to be looked up. All elements have at least some radioactive isotopes. There are 36 elements for which all radioactive isotopes are synthetic or fission products, so for practical purposes, there are no radioactive isotopes of them in nature, except where introduced by human activity. They include most of the common elements we find in nature, but not all. There are 44 elements that are found as stable isotopes, but at least traces of radioactive isotopes are found in nature. Among these are hydrogen, carbon, sodium, silicon, chlorine, and potassium, all of which are necessary for life. Radioactive potassium, in particular, is present as 0.012% of all potassium. For another group of elements, including technetium, promethium, and all with atomic numbers of 83 (bismuth) or more, there is no isotope that is stable.
Is francium found in nature?
No. It is a highly unstable element and it is radioactive.
