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Radon is a noble gas and is radioactive. All of the other noble gasses have at least some synthetic radioactive isotopes. Radioactive isotopes of both krypton and argon exist in nature in trace quantities.

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What noble gas exists mostly as a radioactive isotope?

Radon.


What is a radioactive noble gas?

A radioactive noble gas is a noble gas element that has unstable isotopes, meaning they undergo radioactive decay. An example is radon, which is naturally occurring and emits alpha particles as it decays. These gases can pose health risks if inhaled, as their radioactive decay products can damage cells in the respiratory system.


How is xenon both a noble gas and a radioactive element?

Nothing abnormal; radon is also a noble gas and radioactive.


Is Radon a radioactive metal?

No. Radon is a radioactive noble gas.


What gas glows with a white colour?

Tritium--a radioactive isotope of hydrogen


What noble gas is the most dangerous?

No noble gas is inherently dangerous to humans under normal conditions. However, radon, which is a radioactive noble gas, can be harmful in high concentrations as it decays into radioactive particles that can damage lung tissue and increase cancer risk.


What do radioactive isotopes break down into?

if an isotope broke down the electrical energy would become balanced as the outer electron/s would be taken from the atom and the isotope would become like a noble gas. isotopes can be used for radiation aswell!


What is the element that densest noble gas?

The element with the densest noble gas is radon (Rn). It is a radioactive noble gas that is heavier than the other noble gases, making it the densest.


When an isotope is blank it is radioactive?

When an isotope is unstable, it is said to be radioactive.


Is Rn radioactive nonmetals?

Yes, Rn is radon a radioactive nonmetal. But the symbol Rn does not stand for "radioactive nonmetal." Rn Radon has no stable isotopes, so yes it is always a radioactive nonmetal.


What is the stable isotope that is formed by the breakdown of a radioactive isotope?

The stable isotope formed by the breakdown of a radioactive isotope is called a daughter isotope. This process is known as radioactive decay, where a radioactive isotope transforms into a stable daughter isotope through the emission of particles or energy.


How is a radioactive isotope different from a stable isotope?

The radioactive isotope is disintegrated in time and emit radiations.