Home Forum Dictionary Articles Tutorials Books Directory Share your work


Edit page | Page history | Printable version

Dictionary » R » Rubidium

Rubidium

rubidium

(Science: chemistry, element) A rare metallic element. It occurs quite widely, but in small quantities, and always combined. It is isolated as a soft yellowish white metal, analogous to potassium in most of its properties.

Origin: NL, fr. L. Rubidus red, fr. Rubere to be red. So called from two dark red spectroscopic lines by means of which it was discovered in the lepidolite from Rozena, Moravia.

Abbreviation: Rb


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Natural selection is proven wrong

... be indicated as having once been a different element, and thus how much of those there are can tell what the original amounts were. I'll use the rubidium-strontium dating method as an example. The natural form of strontium is Sr86, but Rb87 decays to produce Sr87, and Sr87 is only produced as ...

See entire post
by alextemplet
Sat May 09, 2009 6:08 pm
 
Forum: Evolution
Topic: Natural selection is proven wrong
Replies: 177
Views: 17096

Re: Natural selection is proven wrong

... happened--would it still be religion or the truth? I mean does a scientist, even if hes gone to school for a hundred years, really know how much rubidium was already in these rocks he's dating when the rock was formed. Its supposed to have evaporated all out but what if all of it doesn't? Or ...

See entire post
by AFJ
Thu May 07, 2009 12:21 am
 
Forum: Evolution
Topic: Natural selection is proven wrong
Replies: 177
Views: 17096

What's bad science? Read here

... bit about it. Dating methods that are most used involve isotopes that are only produced as part of a decay series. As an example I'll use the Rubidium-Strontium technique. Rb87 decays to Sr87 over a half-life of 48.8 billion years. Sr87 is produced only through Rb87 decay; Sr86 occurs naturally. ...

See entire post
by Springer
Sat Feb 04, 2006 5:41 am
 
Forum: Evolution
Topic: What's bad science? Read here
Replies: 48
Views: 6053

What's bad science? Read here

... bit about it. Dating methods that are most used involve isotopes that are only produced as part of a decay series. As an example I'll use the Rubidium-Strontium technique. Rb87 decays to Sr87 over a half-life of 48.8 billion years. Sr87 is produced only through Rb87 decay; Sr86 occurs naturally. ...

See entire post
by alextemplet
Sat Feb 04, 2006 3:10 am
 
Forum: Evolution
Topic: What's bad science? Read here
Replies: 48
Views: 6053


This page was last modified 21:16, 3 October 2005. This page has been accessed 394 times. 
What links here | Related changes | Permanent link