Sentences with phrase «as oxygen atoms»

However, my main point was not so much about the «make up» of ozone but more about the possibility that as long as oxygen atoms and molecules absorb enough energy from UV radiation to alter their structure it may be that they also produce an increase in their heat content, which should be greater at any points nearest to the source — i.e..

The models showed that thinner carbon nanotubes with a relatively high concentration of nitrogen would perform best, as oxygen atoms readily bond to the carbon atom nearest the nitrogen.

Not exact matches

This organic whole that began from an initial high bang and eventuated into the present universe is distinguished by a form of unity and diversity radical beyond all imagining: infinite differences, and diversity that is marked not by isolation but by shared atoms over millennia as well as minute - by - minute exchanges of oxygen and carbon dioxide between plants and animal.

Clay minerals consist of crystals in which atoms of silicon, oxygen and a number of metals, such as aluminum, iron and various rarer and less frequent ones, are arranged in a three - dimensional lattice.

There are basically two types of lines, those produced by collisions between the atoms or ions and the electrons in the surrounding gas, which are called collision lines, and which are very bright for elements such as oxygen, nitrogen and neon, and lines which are produced when ions capture free electrons, which are called recombination lines, and which are bright only for those gases with the highest abundances in the interstellar medium: hydrogen and helium.

Like hydrogen, oxygen, and iodine, nitrogen normally exists as two - atom molecules in the form of a gas at room temperature.

These oxygens have a partial negative charge (as in the molecule of water) and the oxygen atom attracts the electrons of the bonds more effectively.

This compound, which complexed with the sodium cation, was the first compound known to display such activity and became known as dibenzo -18-crown-6, an 18 - atom heterocycle containing 6 oxygen atoms.

Opposite charges attract, so water molecules tend to stick to each other as a positive hydrogen atom of one molecule attaches itself to the oxygen atom of its neighbour.

As the 2 - to -5-inch-long bivalves grew, their shells incorporated atoms of the elements oxygen and carbon of slightly different masses, or isotopes, in ratios that reveal the temperature of the surrounding seawater.

Atoms of most elements, such as hydrogen, oxygen and carbon, form tight chemical bonds by sharing electrons with their neighbours in order to give each atom a stable configuration of electrons.

I knew that heme, the oxygen - carrying molecule in hemoglobin, contained an iron atom within a porphyrin ring (for more information on porphyrin chemistry see this site at Washburn University), but Dr. Datta - Gupta and his laboratory technician attempted to chemically add different metals such as copper, magnesium, or manganese to porphyrins using column chromatography.

Shortly after their birth, they exploded as supernovas, ejecting newly formed carbon, oxygen, and nitrogen atoms into space.

The surprise to biochemists was that the enzyme, called FtmOx1, produces a highly reactive «helper» known as a free radical that assists in putting the oxygen atoms in the right place.

Free oxygen is not bound to another element, as are the oxygen atoms in other atmospheric gases like carbon dioxide and sulfur dioxide.

As the water boiled away, the hydrogen escaped into interstellar space while the oxygen came back down and bonded with carbon atoms.

«As a result of screening about 200 compounds, we found that (3 - furyl) diphenylmethane (chem7), which is a triarylmethane that contains 2 phenyl groups and a furyl (a 5 - membered aromatic ring containing 4 carbons and an oxygen atom in the ring) group, had strong inhibitory activity on plant cell division,» says Ueda.

Today, most phosphorus enters the world's ecosystems as granite and other rocks weather over time, releasing the molecule orthophosphate: a phosphorus atom linked to a hydrogen and four oxygens.

These atoms include carbon, oxygen, nitrogen, and all the other elements that are essential for life as we know it.

«Oxidants, such as oxygen molecules, deposit oxygen atoms into the bank.

Substrate molecules, such as organic compounds containing double bonds, can extract oxygen atoms from this bank to produce oxidized products.

They bonded a thin layer of indium phosphide, a compound that acts as a medium for the laser, onto silicon sheets by exposing both materials to a blast of hot, electrically charged oxygen atoms; the indium phosphide was spiked with aluminum gallium indium arsenide to give it added speed.

The interaction between the dislocation and an oxygen impurity (red atom) leads to the creation of additional dislocations, shown as dark blue lines.

«Our new catalysts contain a transition metal, such as zirconium or hafnium, bound to several organic ligands and act as a bank for oxygen atoms and electrons,» Manz said.

Basically, the oxygen gobbles up all the bad atoms off the surface of the niobium, and afterwards everything gets pumped out as a gas,» Jones said.

«A carbon monoxide molecule adsorbed onto the tip of the AFM «needle» leaves a single oxygen atom as the probe,» Fischer explains.

The link between energy and water is not always apparent, but the two are as intertwined as the hydrogen and oxygen atoms in a bottle of Evian.

He knew he needed to find metals that were deft at breaking the carbon - hydrogen bonds that are at the heart of methane, ethane, and propane, short hydrocarbons known as alkanes, and then add in oxygen atoms that would transform the alkanes into alcohols.

They are particularly good at identifying the position of light atoms such as hydrogen, oxygen, carbon and nitrogen in samples.

They now want to use the technique with Shewanella oneidensis, a bacterium that can reduce graphene oxide by removing oxygen atoms as it metabolises.

Inside the AlloSphere, researchers such as Van de Walle use a joystick to maneuver through three - dimensional constellations of the oxygen, hydrogen and zinc atoms (linked by a complex lattice of chemical bonds) that make up these conductors.

The hydroxyl radical consisting of one hydrogen and one oxygen atom, is one of the most common free radicals in the air and is therefore often referred as the detergent of the atmosphere.

Under similar pressures but higher temperatures, it has been suggested that ice X could possibly transform into a phase of ice that can conduct electricity as hydrogen atoms move freely around the oxygen lattice.

The catalyst acts as a chemical handler, shuffling around the water molecules» assets — electrons, hydrogen ions (protons), and oxygen atoms — to get the reaction to happen.

Water molecules are shown as blue spheres, the four manganese atoms in purple, the calcium in green and the bridging oxygen atoms in red.

Astronomers predicted that as the gas cooled after the explosion, large amounts of dust would form as atoms of oxygen, carbon, and silicon bonded together in the cold central regions of the remnant.

Above this mass, in the upper main sequence, the nuclear fusion process can instead use atoms of carbon, nitrogen, and oxygen as intermediaries in the production of helium from hydrogen atoms.

The goal is to get cerium oxide clusters as small as a single cerium atom with two oxygens.

During laboratory tests, Giapis showed that when these water particles hit the comet's surface, they attach themselves to the oxygen atoms contained in other molecules, such as iron oxide (rust) and silicon dioxide (sand).

As more oxygen enters, the atoms form an organized structure.

A molecule containing three oxygen atoms, computer models suggest that ozone on Venus is formed when sunlight breaks up carbon dioxide molecules and releases oxygen atoms, which are swept around to the planet's nightside by winds where they can then combine to form unstable, three - atom ozone molecules, as well as much more stable, two - atom molecules essential for animals.

As a result, once water molecules are dissociated into ionized hydrogen and oxygen atoms by the Sun's ultraviolet light in Venus» upper atomsphere, they are more easily blown into space by the Solar wind (S.I. Rasool, 1968).

Earth's much thicker layer of low - level ozone, however, has a much larger contribution from the build - up of molecular oxygen beginning some 2.4 billion years ago from photosynthetic microbes excreting oxygen as a waste gas, which now along with plant life is constantly replenishing Earth's two - atom as well as three - stom ozone oxygen molecules.

Highly energetic gamma - and X-rays, with wavelengths as small as or smaller than atoms, are absorbed by oxygen and nitrogen in the upper atmosphere.

Light from oxygen atoms is rendered blue in this image; hydrogen is shown as green, and nitrogen as red.

«We saw number of spectral features emitted by ionized atoms in the galaxies such as hydrogen, oxygen, and neon, which allowed us to determine the metal content of the galaxies.»

But atoms that typically form only two chemical bonds, such as oxygen, don't often make long, polymer - like chains.

As such, they are fully «saturated» with hydrogen atoms, making them extremely heat, light and oxygen stable.

The third atom of oxygen acts as a scavenger, helping to neutralize toxins and promote healing.

He found that gases and vapors whose molecules had three or more atoms, such as water vapor and CO2, absorbed much more of the thermal radiation passing through the tube than did two - atom molecules such as oxygen and nitrogen.