Band of Stability
| Formula / Notation | N/Z ratio: ~1 (light nuclei) to ~1.5 (heavy nuclei) |
|---|---|
| Also Known As | Belt of stability; stability band; N-Z stability plot; valley of stability (in 3D representation) |
What is Band of Stability?
The band of stability (also called the belt of stability) is the region on a plot of number of neutrons (N) vs. number of protons (Z) where stable nuclei are found. Nuclides outside this band are radioactive and decay by various modes (alpha decay, beta decay, positron emission) to reach the stable band. For light elements, N ≈ Z; for heavier elements, N > Z.
Formula & Notation
Other Names / Synonyms: Belt of stability; stability band; N-Z stability plot; valley of stability (in 3D representation)
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
The band of stability (also called the belt of stability) is the region on a plot of number of neutrons (N) vs. number of protons (Z) where stable nuclei are found. Nuclides outside this band are radioactive and decay by various modes (alpha decay, beta decay, positron emission) to reach the stable band. For light elements, N ≈ Z; for heavier elements, N > Z.
Nuclear physics and radioactive decay prediction; nuclear medicine (selecting suitable radioactive isotopes for diagnostics and therapy); nuclear reactor fuel selection; understanding natural radioactive decay chains
No hazard from the concept. Nuclides outside the stability band are radioactive and must be handled with appropriate radiation protection.
The formula or notation for Band of Stability is: N/Z ratio: ~1 (light nuclei) to ~1.5 (heavy nuclei)