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Noble gas

en.wikipedia.org/wiki/Noble_gas

The noble gases make a group of chemical elements with similar properties. Under standard .... The noble gases up to xenon have multiple stable isotopes. .... He predicted the existence of krypton h...

Noble gases Facts, information, pictures | Encyclopedia.com articles ...

www.encyclopedia.com/topic/Noble_gases.aspx

NOBLE GASES CONCEPT Along the extreme right-hand column of the periodic ... and tasteless, as well as monatomic—meaning that they exist as individual atoms, .... Because argon-40 is formed by the radioactive decay of a potassium isotope, .... Since then, many xenon compounds containing mostly fluorine or oxygen ...

Argon, Chemical Element - reaction, uses, elements, metal, gas ...

www.chemistryexplained.com/elements/A-C/Argon.html

The noble gases are the six elements in Group 18 (VIIIA) of the periodic table. ... However, English scientist Henry Cavendish (1731-1810) had predicted the existence of argon ... No radioactive isotopes of argon have any practical application.

How krypton is made - making, history, used, components, product ...

www.madehow.com/Volume-4/Krypton.html

The other noble gases are helium, neon, argon, xenon, and radon. Under normal ... Krypton can also exist as an unstable, radioactive isotope. These isotopes ...

The Elements Revealed: An Interactive Periodic Table - Scientific ...

www.scientificamerican.com/article/chemistry-the-elements-revealed-interactive-periodic-table/

Jun 18, 2013 ... Whether gas, liquid or solid; radioactive or stable; reactive or inert; toxic or in ... Metalloids, Non-Metals, Halogens, Noble Gases, Lanthanides ...

Xenon forms compound at extreme temperature and pressure ...

physicsworld.com/cws/article/news/2013/jul/05/xenon-forms-compound-at-extreme-temperature-and-pressure

Jul 5, 2013 ... Result could unravel mystery of missing noble gas. ... ice – a phase of water that is believed to exist at high pressures and temperatures. ... missing xenon is crucial because the relative abundances of radioactive xenon isotopes are ... But most of these calculations assume that xenon is mostly non-reactive.

Periodic Table Game - Learning Level - Sheppard Software

www.sheppardsoftware.com/periodictable_L.html

The isotope carbon-14 is commonly used in radioactive dating. ... tasteless and mostly inert diatomic non-metal gas, nitrogen constitutes 78 .... Fluorine even combines with the noble gases krypton, xenon, and radon. ..... By contrast, its lighter neighbor oxygen only exists in two states of chemical significance: O2 and O3.

Isotopes - The Physics Hypertextbook

physics.info/isotopes/

This page is mostly just a pile of notes. ... shells, and nuclei having filled nucleonic shells (nuclear 'noble gases') are exceptionally stable. ... strong spatial correlation exists between the annual mean temperature and the mean isotopic fraction ...

Neon - Ne - Neon is used glow lamps, electron tubes, signs, plasma ...

www.c-f-c.com/specgas_products/neon.htm

Neon - Ne - Neon compressed gas is used glow lamps, electron tubes, signs, plasma ... and tasteless monatomic gas, belonging to the Group VIIIA elements, called noble gases. ... the existence of neon-20 and neon-22, which comprise 90.92 and 8.82 percent, ... Five radioactive isotopes of neon also have been identified.

Argon - expert written, user friendly element information - Chemicool

www.chemicool.com/elements/argon.html

Classification: Argon is a noble gas and a nonmetal. Color ... The first hint of its existence came from English scientist Sir Henry Cavendish as far back as 1785. ... A small bubble of gas remained [mostly argon]. ... dating, which uses the decay of the radioactive carbon-14 isotope to find the ages of things that were once alive.

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Xenon, Chemical Element - uses, elements, examples, gas, number ...

www.chemistryexplained.com

Xenon is a noble gas. The term noble gas is used to describe the elements in Group 18 (VIIIA) of the periodic table. ... Mostly, it is used to fill specialized lamps. SYMBOL Xe ... Isotopes. Nine naturally occurring isotopes of xenon exist. ... Two radioactive isotopes of xenon—xenon-127 and xenon-133—are used in medicine.

Krypton, Chemical Element - uses, elements, metal, gas, number ...

www.chemistryexplained.com

Krypton was one of three noble gases discovered in 1898 by Scottish chemist and physicist Sir William Ramsay .... Six naturally occurring isotopes of krypton exist. ... One radioactive isotope of krypton is used commercially, krypton-85.

It's Elemental - The Element Helium

education.jlab.org

[Click for Isotope Data]. 2 ... Period Number: 1 Group Number: 18 Group Name: Noble Gas ... The earth's atmospheric helium is replaced by the decay of radioactive ... Helium is commercially recovered from natural gas deposits, mostly from ...