Molecules are made up of two or moreatoms, either of the sameelementor of two or more different elements, joined by one or more covalentchemical bonds. According to the kinetic-molecular theory, the molecules of a substance are in constant motion. The state (solid, liquid, or gaseous) in ...
1.the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound. 2.a quantity of a substance, the weight of which is numerically equal to the molecular weight; gram molecule. ...
New technique can determine the chirality of molecules in the gaseous stateEditage Insights
V. KramerV. Vr??ajElsevier B.V.International Journal of Mass Spectrometry & Ion PhysicsB. Kralj, V. Kramer, and V. Vrscai, “Fast atom bombardment of molecules in the gaseous state,” Int. J. Mass. Spectrom. Ion Phys., 46 , 399–402 (1983)....
Young's laser technique allows for millions of molecules suspended in a gaseous state to be aligned so that when bombarded with x-rays, they all diffract in the same way. The resulting images are at atomic level resolution and do not require crystallization. "Understanding the structure of the...
The present invention provides a detector for detecting molecules conveyed through a gaseous medium. For example, the molecules may be emitted from sewage, meat production plants, or detection of the molecules may give information about a state of health of a human or an animal. The detector ...
or other materials in a condensed state) of a sufficiently small space can be considerably different from those of bulk gases. Interfacial energy is generally positive and roughly proportional to the interfacial area, which favors a condensed state rather than a gaseous state36,38. In addition, ...
In different experiments, the steady-state mixing ratio of total monoterpenes was approximately 300, 600, and 1200 pptv. We controlled NOxin three distinct sequences: experiments with only NO2to represent the nighttime condition (Fig.1a); experiments with variable NOxconcentrations with a constant...
Solid–Gas Interactions Between Small Gaseous Molecules and Transition Metals in the Solid State. Toward Sensor Applications Summary This chapter contains sections titled: Introduction Access of Small Molecules into Solids Gas–Solid Reactions Conclusions Acknowledgements References MD Meijer,RJMK Gebbink,GV...
The right-hand side that drives the equation for the first unbound intermediate state Ψi+jω(+) is proportional to a bound state limited to the inner region, allowing us to use a purely outgoing solution in the outer region, Ψi+jω(+)→1r∑pfp(r)Xlpmp(rr^)Φp, (10) fp(r)=...