Researchers looked at the ratios of two
forms of oxygen atoms in the minerals deposited in layers in two stalagmites that had formed in a cave in the Himalayan foothills about 200 kilometers north of New Delhi.
Not exact matches
If humans were not designed by a higher authority, how can each individual's DNA be uniquely different among the human species, especially different than the other animals; how can the life sustaining elements be constantly available and exist in exact formulations: O, H, C etc. water is always 2
atoms of Hydrogen and one
atom of Oxygen; sugar, fats, grains, and any bio-chemical products can be broken down to their simplest
forms of elements, but can be re-constructed with specific (not by chance) formula.
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.
The hydrogen - bearing material is volatile (easily vaporized), and may be in the
form of water molecules (two hydrogen
atoms bound to an
oxygen atom) or hydroxyl molecules (an
oxygen bound to a hydrogen) that are loosely bound to the lunar surface.
Within these clouds, on the surfaces
of tiny dust grains, hydrogen
atoms link with
oxygen to
form water.
Like hydrogen,
oxygen, and iodine, nitrogen normally exists as two -
atom molecules in the
form of a gas at room temperature.
(The unusual
form of hydrogen let scientists correct results for
oxygen atoms lost in H2O, for instance when the bear urinated.)
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.
Of the two types of atom, oxygen has more pull on the electrons that they share to form the bonds between them, so the oxygen becomes slightly negatively charged and the hydrogens slightly positiv
Of the two types
of atom, oxygen has more pull on the electrons that they share to form the bonds between them, so the oxygen becomes slightly negatively charged and the hydrogens slightly positiv
of atom,
oxygen has more pull on the electrons that they share to
form the bonds between them, so the
oxygen becomes slightly negatively charged and the hydrogens slightly positive.
«Those electrons are driven into the upper atmosphere, collide with nitrogen and
oxygen atoms and molecules, and then create a spray
of secondary and tertiary radiation, likely in the
form of gamma rays,» Tobiska says.
«One
of our tasks is to determine the exact sequence
of steps for breaking apart water and CO2 into
atoms and piecing them back together to
form ethanol and
oxygen,» says William Goddard (PhD» 65), the Charles and Mary Ferkel Professor
of Chemistry, Materials Science, and Applied Physics, who led the Caltech team.
Dust
forms in space when searing - hot
atoms of carbon,
oxygen and silicon cool and...
The chemical feature that enables this suppression is a bond between two
oxygen atoms — an unstable peroxide bridge that releases a tiny barrage in the
form of free radicals (unpaired electrons) that can fracture parasite proteins the way an F5 twister tears apart barns.
The first - discovered high - pressure, high - temperature denser
form, or phase,
of silica is called coesite, which, like quartz, consists
of building blocks
of silicon
atoms surrounded by four
oxygen atoms.
«The nickel fragments that sputter off
of the pellet react with the
oxygen atoms to produce an oxidized
form of nickel that gets deposited onto the semiconductor,» Lewis says.
Also, the supernova's light spectrum shows the presence
of forms of carbon, nitrogen, and
oxygen atoms that are considered unprecedented.
They think this involves
oxygen and hydrogen
atoms formed during or after the etching process, which attach themselves to the internal surface
of the porous structure.
The researchers discovered that the unique manner in which the platinum and nickel
atoms arrange themselves on the surfaces
of these particles serves to optimally accelerate the chemical reaction between hydrogen and
oxygen to
form water.
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.
Nitrogen, in the
form of nitric oxide (one nitrogen
atom and one
oxygen atom), has been detected for the first time on the surface
of Mars by a team
of researchers using the Sample Analysis at Mars (SAM) instrument suite aboard NASA's Curiosity rover, adding to the growing speculation that life could have once flourished on ancient Mars.
Jansone - Popova created the saturated
form of the preorganized ligand — a cyclic amide containing a nitrogen
atom and a carbon double - bonded to
oxygen.
Composed
of carbon, hydrogen, nitrogen and
oxygen atoms (
forming the CH3NCO molecule) a tragic methyl isocyanate gas leak caused thousands
of deaths and injuries during what is considered to be the deadliest industrial accident in history — the Indian 1984 Bhopal disaster.
With no
oxygen, water couldn't
form (a molecule that consists
of two hydrogen
atoms and an
oxygen atom).
Ozone, on the other hand, is a
form of oxygen that is composed
of three
oxygen atoms.
When an electronically excited
oxygen atom encounters an ozone molecule, they may combine to
form two molecules
of oxygen.
So, Chapman proposed that as soon as one
of these
oxygen atoms («free radicals») collided with an ordinary diatomic
oxygen molecule, they would react together to
form a single triatomic ozone molecule (Figure 18).
Ozone is one
of the criteria air pollutants and is a
form of oxygen, the molecule contains three
oxygen atoms and has the same chemical structure whether it is found high in the atmosphere or at ground - level.
But when their temperature is lowered and they
form a water molecule, the symmetry
of the individual
atoms is broken as they
form a molecule with 105 degrees between the hydrogen -
oxygen bonds.
Carbon dioxide (CO2)
forms during coal combustion when one
atom of carbon (C) unites with two
atoms of oxygen (O) from the air.