The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.



(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A099956 Atomic numbers of the alkaline earth metals. 9


%S 4,12,20,38,56,88

%N Atomic numbers of the alkaline earth metals.

%e 12 is the atomic number of magnesium.

%Y Cf. A099955, alkali metals; A101648, metalloids; A101647, nonmetals (except halogens and noble gases); A097478, halogens; A018227, noble gases; A101649, poor metals.

%K nonn,fini,full

%O 1,1

%A _Parthasarathy Nambi_, Nov 12 2004

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 24 12:30 EDT 2021. Contains 345416 sequences. (Running on oeis4.)