Not exact matches
It is by virtue of their physical properties that electrons and other particles combine in
different ways to
produce atoms, and so it is with
atoms that find themselves in juxtaposition and then combine to
produce molecules.
Two solids made of the same elements but with
different geometric arrangements of the
atoms, or crystal phases, can
produce materials with
different properties.
Since maser is
produced when
atoms are excited to a high energy state, the presence of a maser source suggests the possibility of a physical state which is
different from that of common interstellar cloud.
«Pre-planetary» and «planetary» nebulae are
different in the nature of the light they
produce; pre-planetary nebulae reflect light, whereas mature planetary nebulae shine through ionisation (where
atoms lose or gain electrons).
Finally, thanks to the efforts of Muller and Scott; the French team at RPR; and Battersby's Cambridge group, chemists now know that the cobalt
atom appears at the centre of the vitamin's ring at a
different stage in the pathway, depending on whether the particular B12 -
producing organism is anaerobic or aerobic.
There is nothing to explain the
different behaviors of the two
atoms, no way to predict when they will decay by looking at their history, and — seemingly — no definitive cause that
produces these effects.
The scientists began by building a database of 1,500 odor -
producing molecules, cataloging 1,664
different traits — their size, the strength of the chemical bonds between their
atoms, and so on.
Instead of deploying it in bulk, however, the scientists opted to use it in the form of individual
atoms —
producing a very
different kind of reaction.
According to the scientists, this sputtering source is distinctly
different from a localized source of
atoms produced chemically in the wake of the streaming torus flow past Io.
«Single
atoms prefer to
produce CO, rather than performing the competing HER, because the surface of a bulk metal is very
different from individual
atoms,» says Stavitski.
The Jains more nearly approximated to Democritus by teaching that all
atoms were of the same kind,
producing different effects by diverse modes of combinations.