News tagged with nitrogen
Magnetic cloak: Physicists create device invisible to magnetic fields
Autonomous University of Barcelona researchers, in collaboration with an experimental group from the Academy of Sciences of Slovakia, have created a cylinder which hides contents and makes them invisible to ...
Mar 22, 2012 |
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Graphene foam detects explosives, emissions better than today's gas sensors
(PhysOrg.com) -- A new study from Rensselaer Polytechnic Institute demonstrates how graphene foam can outperform leading commercial gas sensors in detecting potentially dangerous and explosive chemicals. The ...
Nanotechnology / Nanomaterials
Nov 24, 2011 |
3.9 / 5 (8) |
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In nitrogenase - enzyme critical for life, X-ray emission cracks mystery atom
Like a shadowy character just hidden from view, a mystery atom in the middle of a complex enzyme called nitrogenase had long hindered scientists' ability to study the enzyme fully.
Nov 17, 2011 |
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Scientists get first detailed look at nitrogen doping in single-layer graphene
(PhysOrg.com) -- The strength, flexibility, transparency and high electrical conductivity of single-layer graphene make it a potentially unique and valuable material for the next generation of electronic devices. ...
Nanotechnology / Nanomaterials
Sep 21, 2011 |
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Switching from coal to natural gas would do little for global climate, study indicates
Although the burning of natural gas emits far less carbon dioxide than coal, a new study concludes that a greater reliance on natural gas would fail to significantly slow down climate change. The study appears ...
Sep 08, 2011 |
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Subatomic quantum memory in diamond demonstrated
Physicists working at the University of California, Santa Barbara and the University of Konstanz in Germany have developed a breakthrough in the use of diamond in quantum physics, marking an important step ...
Jun 27, 2011 |
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Solar wind samples give insight into birth of solar system
(PhysOrg.com) -- Two papers in this week's issue of Science report the first oxygen and nitrogen isotopic measurements of the Sun, demonstrating that they are verydifferent from the same elements on Earth. ...
Space & Earth / Space Exploration
Jun 23, 2011 |
5 / 5 (8) |
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Solar-powered nano sensor targets gases more polluting than carbon
(PhysOrg.com) -- A solar-powered sensor station to monitor in real time the concentration of gases that are key culprits in climate change and air pollution has been installed on a QUT Gardens Point roof as ...
May 30, 2011 |
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Scientists discover animal-like urea cycle in tiny diatoms in the ocean
Scientists have discovered that marine diatoms, tiny phytoplankton abundant in the sea, have an animal-like urea cycle, and that this cycle enables the diatoms to efficiently use carbon and nitrogen from their ...
May 11, 2011 |
5 / 5 (2) |
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Impact of comets could be responsible for Titan's atmosphere
(PhysOrg.com) -- Titan, Saturn's largest moon, may have had help with the creation of its nitrogen-rich atmosphere, according to a new study published in Nature Geoscience. Scientists believe that multip ...
Space & Earth / Space Exploration
May 09, 2011 |
4.2 / 5 (5) |
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Fire ants assemble as a 'super-organism' (w/ video)
The ants may go marching one by one, but they end up forming a superstructure of thousands -- and together they can form a raft that stretches the boundaries of the laws of physics, according to new research ...
Apr 25, 2011 |
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Laser sparks revolution in internal combustion engines
For more than 150 years, spark plugs have powered internal combustion engines. Automakers are now one step closer to being able to replace this long-standing technology with laser igniters, which will enable cleaner, more ...
Apr 20, 2011 |
4.7 / 5 (27) |
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Russians hope to reach Lake Vostok for the first time soon
(PhysOrg.com) -- Lake Vostok, an untouched lake in Antarctica, is soon to be reached for the first time. Russian scientists are drilling down to the oxygen-rich lake, which is buried beneath a sheet of ice ...
Space & Earth / Earth Sciences
Jan 10, 2011 |
4.8 / 5 (17) |
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City lights make air pollution worse
(PhysOrg.com) -- A new study by scientists in Los Angeles, California has found that bright city lights makes air pollution worse because the glare of the lights interferes with chemical reactions that clean ...
Dec 16, 2010 |
4.7 / 5 (15) |
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Atomic weights of 10 elements on periodic table about to make an historic change
For the first time in history, a change will be made to the atomic weights of some elements listed on the Periodic table of the chemical elements posted on walls of chemistry classrooms and on the inside covers ...
Dec 15, 2010 |
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Nitrogen
Nitrogen (pronounced /ˈnaɪtrədʒɨn/) is a chemical element that has the symbol N and atomic number 7 and atomic mass 14.00674 u. Elemental nitrogen is a colorless, odorless, tasteless and mostly inert diatomic gas at standard conditions, constituting 78% by volume of Earth's atmosphere.
Many industrially important compounds, such as ammonia, nitric acid, organic nitrates (propellants and explosives), and cyanides, contain nitrogen. The extremely strong bond in elemental nitrogen dominates nitrogen chemistry, causing difficulty for both organisms and industry in converting the N2 into useful compounds, and releasing large amounts of energy when these compounds burn or decay back into nitrogen gas.
The element nitrogen was discovered by Daniel Rutherford, a Scottish physician, in 1772. Nitrogen occurs in all living organisms. It is a constituent element of amino acids and thus of proteins, and of nucleic acids (DNA and RNA). It resides in the chemical structure of almost all neurotransmitters, and is a defining component of alkaloids, biological molecules produced by many organisms.
For more information about Nitrogen, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
