Definitions for Roentgenium
roent·ge·ni·um

Princeton's WordNetRate this definition:0.0 / 0 votes

1. roentgenium, Rg, element 111, atomic number 111noun

   a radioactive transuranic element

WiktionaryRate this definition:0.0 / 0 votes

1. roentgeniumnoun

   A transuranic chemical element (symbol Rg) with atomic number 111.

2. Etymology: Surname of Wilhelm Roentgen + -ium

WikipediaRate this definition:0.0 / 0 votes

1. Roentgenium

   Roentgenium is a chemical element with the symbol Rg and atomic number 111. It is an extremely radioactive synthetic element that can be created in a laboratory but is not found in nature. The most stable known isotope, roentgenium-282, has a half-life of 100 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 (also spelled Roentgen), who discovered X-rays. Only a few roentgenium atoms have ever been synthesized, and they have no current practical application beyond that of scientific study. In the periodic table, it is a d-block transactinide element. It is a member of the 7th period and is placed in the group 11 elements, although no chemical experiments have been carried out to confirm that it behaves as the heavier homologue to gold in group 11 as the ninth member of the 6d series of transition metals. Roentgenium is calculated to have similar properties to its lighter homologues, copper, silver, and gold, although it may show some differences from them. Roentgenium is thought to be a solid at room temperature and to have a metallic appearance in its regular state.

ChatGPTRate this definition:0.0 / 0 votes

1. roentgenium

   Roentgenium is a synthetic chemical element with the symbol Rg and atomic number 111. It is named after the physicist Wilhelm Roentgen, who discovered X-rays. As a synthetic element, it cannot be found naturally in the environment and must be created in a laboratory. Roentgenium is highly radioactive and has few uses outside of scientific research due to its short half-life and high instability.

WikidataRate this definition:0.0 / 0 votes

1. Roentgenium

   Roentgenium is a chemical element with the symbol Rg and atomic number 111. It is an extremely radioactive synthetic element; the most stable known isotope, roentgenium-281, has a half-life of 26 seconds. 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. In the periodic table, it is a d-block transactinide element. It is a member of the 7th period and is placed in the group 11 elements, although no chemical experiments have been carried out to confirm that it behaves as the heavier homologue to gold in group 11. Roentgenium is calculated to have similar properties to its lighter homologues, copper, silver, and gold, although it may show some differences from them.

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1. • Element

How to pronounce Roentgenium?

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Numerology

1. Chaldean Numerology

   The numerical value of Roentgenium in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of Roentgenium in Pythagorean Numerology is: 6

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=Roentgenium
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Roentgenium
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Roentgenium
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=Roentgenium