atomkjerners
Atomkjerners are the compact cores at the centers of atoms. They consist of protons and neutrons, collectively called nucleons, bound together by the strong nuclear force. Their size is about 1 to 2 femtometers, and the nucleus carries a positive charge equal to the number of protons, the atomic number.
Nucleons form different nuclides. Nuclei with the same number of protons but different numbers of neutrons
Models used to describe atomkjerners include the liquid drop model for general trends and the nuclear shell
Nuclear reactions and decay processes involve atomkjerners changing through fusion, fission, or radioactive decay (alpha, beta,
Applications span energy production, medical imaging and therapy, dating, and materials analysis. The discovery of the