Stable Nuclides

Natural materials are made of natural existing elements or nuclides. Some of these elements have more than one stable isotope, and some may have long-live isotopes. Stable nuclides are the stable isotopes of all elements.

Elements with atomic number less than 83 have at least one stable isotopes except technetium (Tc, Z = 41) and promethium (Pm, Z = 61). Elements with atomic number between 84 and 92 (inclusive) are present, but some only as decay products of uranium or thorium. This aspect is discussed in decay families.

Features of Stable Nuclides

There are several features with respect to stable nuclides.

Internet Resource

ABC's of Nuclear Science
U.S. Nuclear Data Program Map of nuclides
Periodic table of elements
Table of nuclides
National Nuclear Data Center
Exploring the table of isotopes
The pictorial periodic table