In this analogy, the heads of the pennies could represent stable nuclei, while the tails could represent radioactive nuclei. Stable nuclei do not undergo spontaneous decay, while radioactive nuclei have the potential to decay and emit radiation over time.
Atomic nuclei that are unstable and decaying are said to be radioactive. Radioactive decay involves alpha, beta and gamma particle emissions.
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.
Radioactive substances consist of nuclei that can't be held together by the strong nuclear force. This force is responsible for keeping protons and neutrons bound within the nucleus of an atom. When this force is not strong enough to overcome the repulsion between protons, the nucleus becomes unstable and undergoes radioactive decay.
unstable and eventually transform into a stable form. This process is known as radioactive decay and can result in the mineral changing its chemical composition or structure.
Radioactive isotopes are not stable.
In this analogy, the heads of the pennies could represent stable nuclei, while the tails could represent radioactive nuclei. Stable nuclei do not undergo spontaneous decay, while radioactive nuclei have the potential to decay and emit radiation over time.
Atomic nuclei are changed by nuclear reactions or radioactive disintegration.
fission- is a process in which the nuclei of radioactive atoms are split in to two or more smaller nuclei.
its nuclei can split apart
radioactive
All atoms are nuclear, in that they all have nuclei. Some atoms have unstable nuclei, making them radioactive. I'm afraid I have no idea what you mean by "nuclear atoms," unless you meant to say radioactive atoms, in which case the answer is "they have unstable nuclei and they're radioactive."
Atomic nuclei that are unstable and decaying are said to be radioactive. Radioactive decay involves alpha, beta and gamma particle emissions.
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.
Radioactive decay
radioactive.
Radioactive substances are unstable as a result of the extra neutrons present in the nuclei of the substance. Non-radioactive substances are stable.