Rubidium
id:
rubidium-207-16990596
title:
Rubidium
text:
Rubidium is a chemical element; it has symbol Rb and atomic number 37. It is a very soft, whitish-grey solid in the alkali metal group, similar to potassium and caesium. Rubidium is the first alkali metal in the group to have a density higher than water. On Earth, natural rubidium comprises two isotopes: 72% is a stable isotope ⁸⁵Rb, and 28% is slightly radioactive ⁸⁷Rb, with a half-life of 48.8 billion years—more than three times as long as the estimated age of the universe. German chemists Rob
brand slug:
wiki
category slug:
encyclopedia
description:
Chemical element with atomic number 37 (Rb)
original url:
https://en.wikipedia.org/wiki/Rubidium
date created:
2001-05-17T13:20:40Z
date modified:
2024-09-11T05:13:14Z
main entity:
{"identifier":"Q895","url":"https://www.wikidata.org/entity/Q895"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/c/c9/Rb5.JPG","width":4000,"height":3000}
fields total:
13
integrity:
16