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Although most of the known elements have at least one isotope whose atomic nucleus is stable indefinitely, all elements have isotopes that are unstable and disintegrate, or decay, at measurable rates by emitting radiation. Some elements have no stable isotopes and eventually decay to other elements.
- Nuclear Transmutations
Although the 56 Fe nucleus is the most stable nucleus known,...
- Radioactivity
The two general kinds of nuclear reactions are nuclear decay...
- Radioisotope
Chętnie wyświetlilibyśmy opis, ale witryna, którą oglądasz,...
- Nuclide
Chętnie wyświetlilibyśmy opis, ale witryna, którą oglądasz,...
- 11.3: Stable and Unstable Isotopes
In nuclear reactions, it is the nucleus of the atom that...
- Nuclear Transmutations
In nuclear reactions, it is the nucleus of the atom that gains stability by undergoing a change of some kind. Some elements have no stable isotopes, which means that any atom of that element is radioactive. For some other elements, only certain isotopes are radioactive.
10 sty 2023 · It explains the difference between stable and unstable (radioactive) atoms. Its animation also illustrates how unstable isotopes go about becoming stable. How long it takes an isotope to decay depends on a lot of factors.
This plot shows the nuclides that are known to exist and those that are stable. The stable nuclides are indicated in blue, and the unstable nuclides are indicated in green. Note that all isotopes of elements with atomic numbers greater than 83 are unstable. The solid line is the line where n = Z.
The stable nuclides are indicated in blue, and the unstable nuclides are indicated in green. Note that all isotopes of elements with atomic numbers greater than 83 are unstable. The solid line is the line where n = Z.
17 gru 2021 · Although matter is composed of atoms, for the purposes of describing it in a chemical sense it is more conveniently represented in terms of elements. Elements are pure substances that cannot be decomposed or resolved into simpler substances by chemical means.
The stable nuclides are indicated in blue, and the unstable nuclides are indicated in green. Note that all isotopes of elements with atomic numbers greater than 83 are unstable. The solid line is the line where n = Z.
