Some elements found in nature that mainly have radioactive isotopes include uranium, thorium, and potassium. These elements have naturally occurring radioactive isotopes that decay over time, releasing energy in the form of radiation.
No radioactive isotopes of neon are ordinarily found in nature. All elements have radioactive synthetic isotopes, however.
1. astatine is a halogen that is radioactive.
For most practical purposes, lutetium can be regarded as stable, though it is slightly radioactive. 97.41% of lutetium found in nature is stable, and 2.59% is of an isotope with a half life of 37,800,000,000 years. Like all other elements, lutetium has synthetic radioactive isotopes.
No, tantalite is not a rare earth element. It is a mineral that contains the elements tantalum and niobium. Rare earth elements are a group of 17 chemically similar elements that are typically found together in nature.
Plutonium and xenon are radioactive elements. Plutonium is a synthetic element, while xenon occurs naturally but can also be produced synthetically. Barium and cesium are not synthetic elements but can have radioactive isotopes.
Francium (Fr) is a natural radioactive element, extremely rare.
Some elements found in nature that mainly have radioactive isotopes include uranium, thorium, and potassium. These elements have naturally occurring radioactive isotopes that decay over time, releasing energy in the form of radiation.
All rare earth elements except promethium have at least one stable isotope.Natural-abundance samples of lanthanum, cerium, neodymium, samarium, europium, gadolinium, erbium, ytterbium, and lutetium are all technically "radioactive" in that they contain measurable amounts of radionuclides, but the half-lives of these nuclides are mostly in the hundreds of millions of years or longer (in some cases much longer).
These elements are: - radioactive - dangerous - rare - expensive
No isotope of copper ordinarily found in nature is radioactive. Like all elements, synthetic radioactive isotopes of copper exist.
No radioactive isotopes of neon are ordinarily found in nature. All elements have radioactive synthetic isotopes, however.
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.
No isotope of silver ordinarily found in nature is radioactive. Like all elements, silver has synthetic radioactive isotopes.Silver is not radio active, none of silver's isotopes have radio activity.ur welcome!
1. astatine is a halogen that is radioactive.
For example very rare radioactive chemical elements.
No, Uranium is a rare-ish element whose radioactive isotope is often used in nuclear reactors. ingestion of radioactive elements can result in death