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Molecules are made from atoms of one or more elements. Some molecules are made of only one type of atom. For instance, two oxygen atoms bond together to form the molecule O2, the part of the air that we need to breath to survive.
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List of molecules in interstellar space This is a list of molecules that have been detected in the interstellar medium as of 2005.
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Molecules, such as O2, have more degrees of freedom than single atoms: they can have rotational and vibrational motions as well as translational motion. An increase in temperature will cause the average translational energy to increase.
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Molecule The smallest part of any substance which has the qualities of that substance, and which can exist alone in a free state. As an example, a molecule of water consists of two atoms of hydrogen and one of oxygen.
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molecule A tightly bound collection of atoms held together by the electromagnetic fields of the atoms. Molecules, like atoms, emit and absorb photons at specific wavelengths.
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molecule - (n.)
A collection of atoms bound together that is the smallest collection that exhibits a certain set of chemical properties, ...
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Molecules of carbohydrates and fats consist of carbon, hydrogen, and oxygen atoms. Carbohydrates range from simple monosaccharides (glucose, fructose, galactose) to complex polysaccharides (starch). Fats are triglyceride Triglyceride ...
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Molecules in interstellar space. As of late 1974, at least 33 molecular species had been identified with reasonable certainty: methylidyne CH, ionized methylidyne CH+, the cyanogen radical CN, the hydroxyl radical OH, ammonia NH3, water vapor H2O, ...
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molecule -- two or more atoms bonded into a single particle, such as water, H2O (two hydrogen atoms bonded to one oxygen) or carbon dioxide, CO2 (one carbon atom bonded to two oxygen atoms).
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Did molecules from space seed life in the cosmos? Astronomers have detected more than 150 different molecules in interstellar space. Scientists are studying how these molecules might have jump-started life. By Bruce Dorminey ...
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The molecules produced by the smokeless gunpowder used in military cannon are far too heavy--and therefore, too slow--for sending payloads into space.
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The molecules which carry genetic information, DNA and RNA.
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The molecules of crystals of most materials are optically asymmetrical; that is, they have no plane or center of symmetry. Asymmetrical materials have the power to rotate the plane of polarization of plane-polarized light.
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Some molecules have large internal magnetic fields, or "moments". Just like a tiny bar magnet, these molecules will align themselves with an external magnetic field.
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Omega molecules are produced by a civilization in the Delta Quadrant. The molecules are retrieved by Voyager, and Seven of Nine is able to stabilize the molecules shortly before they are destroyed. (VOY: "The Omega Directive") ...
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The CO molecule possesses a bond length of 0.1128 nm.[14] Formal charge and electronegativity difference cancel each other out. The result is a small dipole moment with its negative end on the carbon atom[15].
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CO is a molecule made from a carbon and an oxygen atom. It is normally a gas on Earth, and is monitored in vehicle emissions because it is toxic.
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Atoms and molecules may change states when they absorb specific amounts of energy. Atomic states are defined by the arrangement of electrons in atomic orbitals.
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The carbon molecules probably arrived inside a comet or asteroid several miles in diameter. When it struck Earth's surface, it blasted billions of tons of debris into the air, blocking sun light and triggering drastic climate changes.
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Ammonia: A gas molecule composed of one part nitrogen and three parts hydrogen; NH3.
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Ion. An atom or molecule that has; lost one or more of its electrons (a positive ion) or gained one or more electron (a negative ion). Ionisation. The process where electrons are added to or stripped from an atom or molecule turning it into an ion.
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Atoms and molecules are perpetually in motion. Increased temperature means greater average energy, so most substances expand when heated. In solids, the atoms are closely locked in position and can only vibrate.
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The remaining major molecules that have been observed in Saturn's atmosphere are methane (CH ) and ammonia (NH ), which are a factor of two to five times more abundant relative to hydrogen than in a gas of solar composition.
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An process in which molecule on the high velocity tail of the Maxwell distribution escape. Thermally driven escape is negligible for planet-sized bodies for all but the lightest elements (H2 and He).
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Also, the phenomenon by which water is held in interstices above the normal hydrostatic level, due to attraction between water molecules.
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The process always involves dif fusion through the solid and may involve various surface phenomena, such as sorption, dissociation, migration, and desorption of the gas molecules.
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Spectral lines result from discrete changes in the energy of an atom or molecule. Different atoms or molecules can be identified by the unique sequence of spectral lines associated with them.
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Because of the limitations in what kinds of H2 can be observed, and where, The most useful tracer of molecular gas has long been the trace molecule CO, which has a "fundamental" J=01 transition at 2.
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Some types of atoms such as neutral metals (and also molecules) have lots of closely spaced orbits that respond to relatively low energy photons. In the figure above, these are Calcium (Ca) and Iron (Fe).
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The light from a blackbody is the sum of all the photons emitted from all the molecules and atoms packed together into a solid body. But what if you were to look at the light coming from an individual atom?
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Class G and K giants are known for having the cyanogen molecule (CN) in their atmospheres (indeed, the molecule is important in their classifications).
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Whipple set forth in 1950 the so-called dirty snowball model, according to which the nucleus is a lumpy piece of icy conglomerate wherein dust is cemented by a large amount of ices—not only water ice but also ices of more volatile molecules.
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Temperature is a measure of the average heat or thermal energy of the molecules in a substance. The atoms and molecules in a substance do not always travel at the same speed.
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Due to the abundance of hydrogen, the hydrogen-based molecules - such as methane, ammonia, and water - predominate.
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Zeiger (1925- ) in 1954, and made use of the frequency of the ammonia molecule.
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These instruments do the same thing that water molecules in the atmosphere do when the molecules produce a rainbow. Each color corresponds to a different wavelength of light.
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Water molecules made with O18 are about 10% heavier then those made with O16.
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This amazing find is the first sugar (and one of the most complex molecules) found in space. This molecule was detected by Jan M. Hollis (NASA/Goddard), Frank J. Lovas (University of Illinois), and Philip R.
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The parent molecules are mainly split up by energetic ultraviolet radiation from the Sun into simple compounds. These are not necessarily like stable chemicals that we know on the Earth but are simple combinations of atoms.
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In the meantime, biochemists had been hunting for the biochemical basis of the gene, and had zeroed in on a molecule known as "deoxyribo nucleic acid (DNA)" commonly found in chromosomes as the agent of heredity.
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When energy of an isolated atom or molecule changes, it does so in a definite jump from one value to another, with no possible values in between.
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As a cosmic ray enters the atmosphere, it will collide with a particle in there (usually a nitrogen or oxygen molecule), or interact with the molecules, exciting them and thus causing an outer space influence upon the Earth's environment.
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The atmosphere of Jupiter consists of large quantities of hydrogen and helium which (with other molecules) formed methane, ammonia, ethane, acetylene and other gases.
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Molecules in the solar wind move so quickly and have so much energy that they can make their way into living cells. The hundreds of billions of electron volts that they have makes them move faster than a speeding bullet! ...
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The daytime sky is blue because light from the nearby Sun hits molecules in the Earth's atmosphere and scatters off in all directions. The blue color of the sky is a result of this scattering process.
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 See also: Light, Earth, Energy, Time, Solar
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