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  • What are Radio Active Elements ? List of Radio Active Elements

What are Radio Active Elements ? List of Radio Active Elements

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  • Date October 15, 2020
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Radio Active Elements

The elements that are formed naturally by nuclear fission or through the intentional synthesis in nuclear reactors or particle accelerators are called Radio Active Elements. All elements can have radioactive isotopes. If enough neutrons are added to an atom, it becomes unstable and decays. The increasing atomic number does not necessarily make an atom more unstable.

Natural radioisotopes may generate from nucleosynthesis in stars and supernova explosions. Primarily, the radioisotopes have half-lives until they get stable for all practical purposes. And once they decay, they form secondary radionuclides.

Here is a list of Radio-Active elements which are sorted by increasing atomic number:

Element NameMost Stable

Isotope

The half-Life of most stable

isotope

TechnetiumTc-914.21*10^6 years
PromethiumPm-14517.4 years
PoloniumPo-209102 years
AstatineAt-2108.1 hours
RadonRn-2223.82 days
FranciumFr-22322 minutes
RadiumRa-2261600 years
ActiniumAc-22721.77 years
ThoriumTh-2297.54*10^4 years
ProtactiniumPa-2313.28*10^4 years
UraniumU-2362.34*10^7 years
NeptuniumNp-2372.14*10^6 years
PlutoniumPu-2448.00*10^7 years
AmericiumAm-2437370 years
CuriumCm-2471.56*10^7 years
BerkeliumBk-2471380 years
CaliforniumCf-251898 years
EinsteiniumEs-252471.7 days
FermiumFm-257100.5 days
MendeleviumMd-25851.5 days
NobeliumNo-25958 minutes
LawrenciumLr-2624 hours
RutherfordiumRf-26513 hours
DubniumDb-26832 hours
SeaborgiumSg-2712.4 minutes
BohriumBh-26717 seconds
HassiumHs-2699.7 seconds
MeitneriumMt-2760.72 seconds
DarmstadiumDs-28111.1 seconds
RoentgeniumRg-28126 seconds
CopernicumCn-28529 seconds
NihoniumNh-2840.48 seconds
FleroviumFl-2892.65 seconds
MoscoviumMc-28987 milliseconds
LivermoriumLv-29361 milliseconds
TennessineUnknown 
OganessonOg-2941.8 milliseconds

Nuclear fission from nuclear power plants and thermonuclear weapons produces radioactive isotopes which are known as fission products. Radioactive elements are both anthropogenic and naturally occurring in origin.

Most of the Geosphere has these deposits. Naturally occurring radioactive materials majorly contain the members of the uranium and thorium decay chains and also including radium and radon.  Human activities such as mining and milling of uranium ore, coal-burning, and water treatment are the reasons for these wastes which contain a high level of these radioactive materials. Anthropogenic radionuclides include transuranic elements like Pu, Np, Am, and fission products produced by nuclear reactions.

Radioactive elements contain atoms whose nuclei give off atomic radiations as part of a process of attaining stability.




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Tag:Elements, nuclear fission, nucleosynthesis, radio active, radio active elements, radionuclides

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