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Radioactive metals are unstable as their nuclei is large and do not have a strong binding force as the smaller elements. If a neutron is collided onto a radioactive nuclei, they split into smaller atoms like Uranium splits into Barium and Krypton. Since they are unstable, they have a half life of varying times which range from the age of the earth to nanoseconds for recently discovered elements

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Q: Why radioactive materials are unstable?
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Related questions

Radioactive materials have unstable?

It's Nuclei, the past answers are wrong.


What is the difference between radioactive and non radioactive materials?

Radioactive substances are unstable as a result of the extra neutrons present in the nuclei of the substance. Non radioactive substances are stable.


What changes in a radioactive material to make it emit radiation?

Due to unstable atomic structures (or a weak nuclear force), radioactive materials release alpha particles as radiation.


What is an unstable atom?

An unstable atom is a radioactive atom.


What are mass of unstable atoms?

Unstable atoms are said to be radioactive


Is roentgenium dangerous?

As a radioactive and unstable element roentgenium can be dangerous.


When an isotope is blank it is radioactive?

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


What are the unstable element?

Radioactive elements are unstable, and the shorter the half-life, the more unstable they are.


What is An unstable isotope is called what?

It isn't really an ELEMENT that is unstable, but an ISOTOPE. That means that in general, for the same element, some atoms will decay, and some will not - the difference being the number of neutrons in the nucleus.


What are isotopes considered radioactive?

Not all isotopes are radioactive; the radioactive isotopes are unstable and emit radiations.


What is an unstable isotope?

Unstable isotopes are radioactive isotopes, can disintegrate and emit radiations.


Is mendelevium radioactive and synthetic?

Mendelevium is an artificial chemical element, radioactive, unstable.