An isotope with a great atomic number ad a great mass number.
The source of energy in a nuclear reactor is the release of binding energy, i.e. the binding energy that hold protons and neutrons together in the nucleus of the atom. Heavy nuclides, such as uranium, are split into lighter nuclides, such as cesium and barium (and many others, in a semi-random cross section). The binding energy required to hold the original uranium together is less than the daughter products and is released to the system in the form of heat and other radiation.
Nuclear energy can be lost through various processes such as heat dissipation, waste heat conduction, and mechanical energy losses in power plants. Additionally, energy can be lost through inefficiencies in the generation and transmission of electricity.
Heavy nuclei typically emit alpha particles (composed of two protons and two neutrons) or beta particles (electrons or positrons) during decay as they seek to become more stable by reaching a more balanced ratio of protons and neutrons.
Radioactive nuclides can expose the photographic film through the light-proof paper, leaving visible traces of radiation on the film. This can result in fogging or discoloration of the film, affecting the quality of the images captured. It is important to store photographic film away from sources of radiation to prevent unwanted exposures.
Nuclear Energy divides into Nuclear Fission as exemplified by the Atomic Bomb and our nuclear power reactors and Nuclear Fusion as exemplified by our Sun, all of the stars in our universe, and the hydrogen bomb. Fusion combines lighter nuclides into heavier nuclides, such as hydrogen to helium, losing some mass and releasing some energy as part of the fusion. Stars fuse hydrogen to helium. Heavy stars move to fusing helium to carbon, then carbon to neon, neon to oxygen, oxygen to silicon, and finally silicon to iron 56. Iron 56 is the end of the line. All available fusion energy has been wrung out. The alternate to fusion is nuclear fission, which splits heavier nuclides into lighter daughters, losing some mass and gaining some energy as part of the fission. For example uranium 235 can absorb a stray neutron and become uranium 236 which then fissions into daughter nuclides plus two stray neutrons. The stray neutrons released by the fission can excite other U235 atoms, thus the chain reaction. Some mass is lost and energy is released. Also, radioactives such as iodine 131 are manufactured and used in medical diagnostics such as renal testing and thyroid uptake testing.
Heavy nuclides, greater than iron or nickel, have a negative mass-energy deficit, meaning that it takes more energy to fuse them than would be released by such fusion. That is why only light nuclides, such as hydrogen are realistic candidates for fusion.
No
Decay series
yes
23892U
No. Some are stable.
Isotones, isotonic nuclides
Carbon-14
Unstable nuclides undergo nuclear reactions in order to become more stable. These reactions involve the nucleus gaining or losing subatomic particles in an attempt to achieve a more favorable balance of protons and neutrons. By undergoing nuclear reactions, unstable nuclides can transform into more stable isotopes with lower energy states.
Yes. From a technical point of view, all elements have isotopes (nuclides) that are radioactive and therefore have half-lives. But the majority of these are artificial - man made, and do not occur in nature on Earth. Even hydrogen has nuclides of deuterium and tritium, deuterium is stable and natural, and tritium has a half life of 12.33 years. Having said that, there are a number of nuclides that are stable and occur naturally.
Isotopes
No they're neutron rich.