One hydrogen atom pairs with other free hydrogen atoms to create hydrogen gas, which is also captured and sold.
Bombard an ordinary hydrogen atom with microwaves of the right frequency and you will lift it out of its ground state by flipping the spin of its electron.
These are an amine group, an acid group (hence the name), a hydrogen atom, and a fourth chemical group that can be any one of 20 different clusters of atoms.
The nebulous field of nanotechnology, freighted with as much hype as legitimate promise, boils down to the process of manipulating matter on a molecular scale (a nanometer is one billionth of a meter, about ten times the width of a hydrogen atom).
Even if experimenters bounce the beams to and fro to increase the effective length of an interferometer's arms to more than 100 kilometres, the expected difference in length between the two beams' paths still amounts to less than a hundred-millionth of the diameter of a hydrogen atom.
Hydrogen, the simplest atom, consists of a single proton encircled by a single electron.
The researchers caught an intermediate step in the process by which hydrogen is removed from tryptamine, namely the point at which a proton disappears from a carbon atom as the carbon-hydrogen bond breaks.
Natural gas is mostly methane, which has four hydrogen atoms for every carbon atom the maximum that is physically possible for a hydrocarbon.
In particular, when methyl groups (made up of a carbon atom and three hydrogen atoms) are plastered on to a gene, they can stop that gene from being expressed altogether.
In fact, Honda (nyse: HMC - news - people ) delivered the car to me on the back of a truck, lest one atom of precious hydrogen be wasted.
The carbon combines with the hydrogen in water to make carbon monoxide and hydrogen gas--the old "town gas"--but then the catalyst prompts a rejiggering of the atoms into methane (one carbon atom attached to four hydrogen atoms).
How did two atoms of hydrogen wind up welded to a single atom of oxygen?
That means each of its molecules contains an oxygen atom as well as the carbon and hydrogen found in an alkane.
ECONOMIST: Biofuels are back. This time they might even work
Any simple alcohol is composed of a number of carbon and hydrogen atoms (like a hydrocarbon such as petrol) together with a single oxygen atom.
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