Roentgenium
id:
roentgenium-207-11608871
title:
Roentgenium
text:
Roentgenium is a synthetic chemical element; it has symbol Rg and atomic number 111. It is extremely radioactive and can only be created in a laboratory. The most stable known isotope, roentgenium-282, has a half-life of 130 seconds, although the unconfirmed roentgenium-286 may have a longer half-life of about 10.7 minutes. Roentgenium was first created in 1994 by the GSI Helmholtz Centre for Heavy Ion Research near Darmstadt, Germany. It is named after the physicist Wilhelm Röntgen, who discove
brand slug:
wiki
category slug:
encyclopedia
description:
Chemical element with atomic number 111 (Rg)
original url:
https://en.wikipedia.org/wiki/Roentgenium
date created:
2002-07-02T03:08:47Z
date modified:
2024-09-11T03:43:59Z
main entity:
{"identifier":"Q1272","url":"https://www.wikidata.org/entity/Q1272"}
image:
fields total:
13
integrity:
15