Nuclides (or nucleides, from nucleus; also known as nuclear species) are a class of atoms characterized by their number of protons, Z, their number of neutrons, N, and their nuclear energy state. [1]

Nuclide, species of atom as characterized by the number of protons, the number of neutrons, and the energy state of the nucleus. A nuclide is thus characterized by the mass number (A) and the atomic …

A nuclide has a measurable amount of energy and lasts for a measurable amount of time. Stable nuclides can exist in the same state indefinitely, but unstable nuclides are radioactive and decay over …

Mar 11, 2026 · A nuclide is defined by its protons and neutrons, making it more precise than “isotope.” Learn how nuclides work and why they matter in medicine and science.

ENSDF contains recommended nuclear structure and decay data for all the known nuclides, which are obtained following a critical review of all available experimental data, supplemented with systematic …

LiveChart is an interactive chart that presents the nuclear structure and decay properties of all known nuclides through a user-friendly graphical interface. Most of the accessible data are taken from the …

Aug 30, 2025 · A nuclide is a specific type of atom defined by the precise number of protons and neutrons in its nucleus. This term emphasizes the atom’s exact nuclear makeup, distinguishing it …

Each nuclide is denoted by the chemical symbol of the element (this specifies Z) with the atomic mass number as a superscript. Hydrogen (H), for example, consists of one electron and one proton.

Gold only has one stable nuclide (shown in dark brown). Move the time slider to the right to see these nuclides decay.

The meaning of NUCLIDE is a species of atom characterized by the constitution of its nucleus and hence by the number of protons, the number of neutrons, and the energy content.