Isotopes of neptunium

Neptunium (Np) has several isotopes, with the most notable ones being: 1. **Neptunium-237 (Np-237)**: This is the most stable and prominent isotope of neptunium, with a half-life of about 2.14 million years. It is produced in nuclear reactors and is of interest due to its potential use in nuclear waste management and as a source of plutonium-238.