Helium and argon are monatomic gases.    From Wordnet, Princeton University. 

Ionization was also observed in monatomic inert gases, which proves that the unit of electric charge is a constituent of the atom that is liberated from it by ionization.    From Wordnik.com.  [Nobel Prize in Physics 1923 - Presentation Speech] Reference

It tears itself into a fog of monatomic particles.    From Wordnik.com.  [The Ringworld Engineers]

For monatomic gases, this space is just a six-dimensional space with as coordinates.    From Wordnik.com.  [Boltzmann's Work in Statistical Physics] Reference

This releases the signature black light plasma and restores the atoms to monatomic levels.    From Wordnik.com.  [Relativistic Hydrogen molecules extract energy] Reference

The cadmium molecule, as shown by determinations of the density of its vapour, is monatomic.    From Wordnik.com.  [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"] Reference

That these are all monatomic gases was proved by determining the ratio of their specific heats by.    From Wordnik.com.  [Sir William Ramsay - Nobel Lecture] Reference

It is somewhat unexpected that the atom of a monatomic gas like helium should carry a double charge.    From Wordnik.com.  [Ernest Rutherford - Nobel Lecture] Reference

The handwritten manuscript titled "Quantum theory of the monatomic ideal gas" was dated December 1924.    From Wordnik.com.  [Einstein Manuscript Surfaces] Reference

The handwritten manuscript titled “Quantum theory of the monatomic ideal gas” was dated December 1924.    From Wordnik.com.  [Original Einstein Manuscript Discovered | Impact Lab] Reference

Solid matter, rendered suddenly and violently positive, tended to tear itself into a fog of monatomic dust.    From Wordnik.com.  [Ringworld]

Soil and rock, torn to atoms by the mutual repulsion of the nuclei, reached him as a fog of monatomic dust.    From Wordnik.com.  [Ringworld]

For a monatomic ideal gas the temperature is related to the translational motion or average speed of the atoms.    From Wordnik.com.  [Think Progress » Are you ready for some football global warming?] Reference

The German-language manuscript is titled 'Quantum theory of the monatomic ideal gas,' and is dated December 1924.    From Wordnik.com.  [OpEdNews - Quicklink: Original Einstein Manuscript Discovered] Reference

Not to be confused with the Biblical manna … the monatomic white gold that made the Ark of the Covenant fly ….    From Wordnik.com.  [Fiction Writing: Find the Spirit of Aloha] Reference

Its molecules were monatomic but their arrangement was unusual-the effect of close packing was achieved without the usual concomitant of great density.    From Wordnik.com.  [The Voyage of the Space Beagle]

This anomalous condition may be accounted for by the fact that in each case the molecular structure is monatomic, as shown by the values obtained for the ratios of their specific heats.    From Wordnik.com.  [Scientific American Supplement, No. 1082, September 26, 1896] Reference

The density of the gas was 2.133 and the ratio of its specific heats (Cp/Cv) 1.652, the latter figure indicating that the molecule of helium was monatomic, as had already been found to be the case with argon.    From Wordnik.com.  [Scientific American Supplement, No. 1082, September 26, 1896] Reference

He was the first to observe the very stable adsorbed monatomic films on tungsten and platinum filaments, and was able, after experiments with oil films on water, to formulate a general theory of adsorbed films.    From Wordnik.com.  [Irving Langmuir - Biography] Reference

Water can be cheaply disassociated into Brown's Gas/HHO gas (monatomic and diatomic Hydrogen and Oxygen) using efficient electrolyzing techniques which require very little power to operate, or sophistication to build.    From Wordnik.com.  [Brown's Gas ("HHO") : Clean, Cheap, and Suppressed Energy] Reference

This then requires nature to resupply the hydrogen atoms to monatomic energy levels.    From Wordnik.com.  [Next Big Future] Reference

Hudson planned to start a manufacturing plant to produce the critical monatomic component.    From Wordnik.com.  [Grandinite] Reference

Physics refers to the monatomic high-spin state as "asymmetrical deformed high-spin nuclei.".    From Wordnik.com.  [Grandinite] Reference

Ive been worried about the gold shortage myself … anyone know about monatomic gold and the Arc of the Covenant?.    From Wordnik.com.  [Alex Jones' Prison Planet.com] Reference

According to every possible metric, the goodness value of all xkcd comics ever published, plotted on a graph against time, form a strictly monatomic-increasing function!.    From Wordnik.com.  [digg.com: Stories / Popular] Reference

It's a chemical symbol for xenon, which is defined as "a heavy, colorless, chemically inactive, monatomic gaseous element present in the atmosphere ... used to fill luminescent tubes.".    From Wordnik.com.  [The Texas Observer: In the Current Issue] Reference

By a special process of arc heating, gold and other platinum group metals can be turned into a single atom or monatomic substance - a form of powder - that has superconductive properties.    From Wordnik.com.  [Grandinite] Reference

Indeed, in the course of his efforts, Hudson had made contact with scientists, at the time from GE, who had realized that a monatomic superconductor could enable the perfect, environmentally friendly fuel-cell.    From Wordnik.com.  [Grandinite] Reference

K is the ratio (cp/cv) which, for a monatomic gas, is 1.66.    From Wordnik.com.  [Scientific American Supplement, No. 1082, September 26, 1896] Reference

Reply monatomic gold fourrealms.com.    From Wordnik.com.  [WordPress Code Spelunking] Reference

Oxidizing species include singlet oxygen, hydroperoxide, hydroxyl, monatomic oxygen, and hydroperoxyl (OH.    From Wordnik.com.  [Citizendium, the Citizens' Compendium - Recent changes [en]] Reference

4 minutes ago, -0/+1I know you meant monotonic, but I think monatomic is even better.    From Wordnik.com.  [digg.com: Stories / Popular] Reference

Oxygen gas (O2): 1,190 trillion tonnes (around 23. 1%), monatomic): 66 trillion tonnes (around 1. 3%), and Carbon Dioxide (CO2): 2.18 trillion tonnes (about 0. 04%), plus a variable amount of water vapor.    From Wordnik.com.  [ScienceBlogs Channel : Life Science] Reference

"Ether is monatomic.    From Wordnik.com.  [The Dragon Lensman]

Disintegrator dust is nearly monatomic. ".    From Wordnik.com.  [Neutron Star]

“The monatomic helium molecule is ooh-how-small.    From Wordnik.com.  [The Earth Book of Stormgate]