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The elements described are said to be radioactive.

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Which are unstable elements that decay or break down into differt elements?

Unstable elements that decay or break down into different elements are called radioactive elements. These elements have an unstable atomic nucleus that undergoes radioactive decay, transforming into a different element and releasing energy in the process. Examples of radioactive elements include uranium, radium, and plutonium.


What is the property of an unstable isotope?

It will decay to a more stable lighter elements and release out some nuclear energy.


What are stable and unstable elements of nuclear chemistry?

Unstable chemical elements are disintegrated by radioactive decay.


What is the process in which the atomic nuclei of unstable isotopes release fast moving particles and energy?

The process is called radioactive decay, in which unstable isotopes undergo spontaneous disintegration to form more stable elements. During this process, fast-moving particles such as alpha and beta particles are emitted, along with energy in the form of gamma rays.


Which are unstable elements that decay or break down into different elements?

Radioactive


When an isotope decays over time and becomes a different element what is it called?

It is called radioactive decay. During this process, an unstable isotope loses energy or particles to become a more stable element.


Where does decay and radiation occur?

Decay and radiation occur at the atomic level within unstable nuclei of atoms. Decay is the process where an unstable nucleus emits particles or energy to become more stable, while radiation refers to the particles or energy emitted during this process. Both decay and radiation can occur in natural radioactive elements or in artificially created radioactive isotopes.


What are mass of unstable atoms?

The mass of unstable atoms can vary widely depending on the specific isotope and the decay process involved. Unstable atoms typically have a higher mass compared to stable atoms due to the presence of excess energy or additional subatomic particles. When unstable atoms undergo radioactive decay, they can transform into more stable elements by emitting particles and energy.


What is it called when atoms are unstable and undergo a nuclear decay?

radioactive decay


Are superheavy elements stable or unstable?

Superheavy elements are generally very unstable and quickly decay through nuclear processes like alpha decay or spontaneous fission. Their short half-lives make them difficult to study and understand.


Process by which unstable nuclei lose energy?

Radioactive decay


Which element is unstable and decays to form other elements?

Radioactive elements, such as uranium and thorium, are unstable and undergo radioactive decay to form other elements. This process involves the emission of particles or energy from the nucleus of the unstable element to achieve a more stable configuration.