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Heavy, i.e. large, nuclei are unstable because their size is such that the attractive strong nuclear force starts to lose out over the repulsive effect of the electromagnetic interaction. The happens because the distance coefficient for the strong nuclear forces drops off more rapidly than does the electromagnetic interaction.

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What are the key differences between stable and unstable nuclei?

Stable nuclei have a balanced number of protons and neutrons, while unstable nuclei have an imbalance. Unstable nuclei undergo radioactive decay to become more stable.


What is the difference between stable and unstable nuclei?

Stable nuclei have a balanced number of protons and neutrons, while unstable nuclei have an imbalance, leading to radioactive decay.


How many unstable nuclei exist in nature?

There are many unstable nuclei that exist in nature, but the exact number is difficult to determine due to the sheer variety of radioactive isotopes that can occur. These unstable nuclei can undergo radioactive decay to become more stable over time.


Where is unstable nuclei most commonly found?

Unstable nuclei are most commonly found in radioactive materials, such as uranium and radium. These materials emit radiation as the unstable nuclei undergo radioactive decay in an attempt to become more stable.


What is property in which unstable nuclei of an element spontaneously emit radiation?

Radioactivity is the property in which unstable nuclei of an element spontaneously emit radiation.


LArge nuclei are unstable because?

Penis


Radioactivity is produced when unstable nuclei .?

Break apart


What is nuclei that has unstable decay known as?

Atomic nuclei that are unstable and decaying are said to be radioactive. Radioactive decay involves alpha, beta and gamma particle emissions.


Process by which unstable nuclei lose energy?

Radioactive decay


What is the sorce of radioactivity?

The spontaneous decomposition of unstable atomic nuclei.


How does nuclear decay contribute to the process of unstable nuclei achieving greater stability?

Nuclear decay is a process where unstable nuclei release energy or particles to become more stable. This helps unstable nuclei achieve greater stability by reducing their excess energy or changing their composition to reach a more balanced state.


What are the various differences between a stable and an unstable nuclei?

The nuclei of a stable radioactive isotope will after been bombarded with a neutron produce a radiation and enormous energy and such reaction will come to an end, while the nuclei of an unstable nuclei will continue to react with little fragment of the neutron continuously (long chain nuclear reaction) until it has attain it stable phase.mind you this reaction with the little fragment of this neutron can last over 10 years.