A179301 Number of stable isotopes of element n.

2, 2, 2, 1, 2, 2, 2, 3, 1, 3, 1, 3, 1, 3, 1, 4, 2, 3, 3, 6, 1, 5, 2, 4, 1, 4, 1, 5, 2, 5, 2, 5, 1, 6, 2, 6, 2, 4, 1, 5, 1, 7, 0, 7, 1, 6, 2, 8, 2, 10, 2, 8, 1, 9, 1, 7, 2, 4, 1, 7, 0, 7, 2, 7, 1, 7, 1, 6, 1, 7, 2, 6, 2, 5, 2, 7, 2, 6, 1, 7, 2, 4, 1, 0, 0, 0, 0, 0, 0, 1, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0

Offset: 1

Author

Will Nicholes, Jul 10 2010

Keywords

• nonn

Comments

Stable in this context means either theoretically stable (e.g. Hydrogen-1), or technically radioactive but stable for all practical purposes (e.g. Bismuth-209).

Radioactive nuclides with a half-life of 700 million years or greater are included.

Links

• Wikipedia, Table of nuclides.

Crossrefs

Cf. A058317, A121818, A007656.

Extensions

a(106)-a(118) (Sg to Uuo) by Jeremy Tan, Oct 24 2013