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Page "Chemical element" ¶ 18
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However and atomic
However, my principal objection in this sort of novel is to the hackneyed treatment of race-drivers, pilots, submariners, atomic researchers, and all the machine-masters of our age as brooding mystics or hysterical fatalists.
Dmitri Mendeleev claimed he arranged his tables in order of atomic weight (" Atomgewicht ") However, in deference to the observed chemical properties, he violated his own rule and placed tellurium ( atomic weight 127. 6 ) ahead of iodine ( atomic weight 126. 9 ).
However, physicists distinguish between atomic physics — which deals with the atom as a system consisting of a nucleus and electrons — and nuclear physics, which considers atomic nuclei alone.
However, the wavelength of visible light ( about 4000 to 7000 angstroms ) is three orders of magnitude longer than the length of typical atomic bonds and atoms themselves ( about 1 to 2 angstroms ).
However, in formulating policies regarding the atomic bomb and relations with the Soviets Truman was guided by the U. S. State Department and ignored Eisenhower and the Pentagon.
However, Godzilla defeats Biollante with his atomic breath.
However, due to chemical bonding characteristics glasses do possess a high degree of short-range order with respect to local atomic polyhedra.
However in the case of the free electron laser, atomic energy levels are not involved ; it appears that the operation of this rather exotic device can be explained without reference to quantum mechanics.
However with the help of the correct atomic weights for copper and oxygen ( which Dalton did not know ), it is determined that the formulas of these two oxides are Cu < sub > 2 </ sub > O and CuO.
However, other factors ( such as atomic radius, nuclear charge, number of bonding orbitals, overlap of orbital energies, and crystal form ) are involved as well.
However different isomers can have the same atomic composition while being different molecules.
However, the following symmetry adapted atomic orbitals do:
However, more commonly the atomic mass unit ( symbol u or Da ) is used.
However, when multiple nucleons are assembled into an atomic nucleus ( nuclide ), these fundamental equations become too difficult to solve directly ( see lattice QCD ).
However, both slow and fast neutrons react with the atomic nuclei of many elements upon collision with those nuclei, creating unstable isotopes and therefore inducing radioactivity in a previously non-radioactive material.
However, as is the case with X-rays, materials with high atomic number such as lead or depleted uranium add a modest ( typically 20 % to 30 %) amount of stopping power over an equal mass of less-dense and lower atomic weight materials ( such as water or concrete ).
However the process is identical in form to atomic absorption in which the energy of an absorbed photon causes an identical but opposite atomic transition: from the lower level to a higher energy level.
An atomic mass unit is, for roughly 40 atoms per cubic meter .</ ref > However, even if every single atom and particle could be removed from a volume, it would still not be " empty " due to vacuum fluctuations, dark energy, and other phenomena in quantum physics.
However, as computational and experimental methods improved over the next decades, it became feasible to deduce reliable atomic positions for more complicated two-and three-dimensional arrangements of atoms in the unit-cell.

However and mass
However, the conversion from mass to size is unreliable, since many photographic meteors give evidence of a fluffy, loosely bound meteorite structure with densities as low as Af.
However, using pure mass to resist the forces of a storm only works well as a permanent mooring ; a large enough rock would be nearly impossible to move to a new location.
However, a US Public Health Service trial of BCG in Georgia and Alabama published in 1966 showed an efficacy of only 14 %, and did much to convince the US it did not want to implement mass immunization with BCG.
However, Kusche's research showed that the unclassified version of the Air Force investigation report stated that the debris field defining the second " crash site " was examined by a search and rescue ship, and found to be a mass of seaweed and driftwood tangled in an old buoy.
However, the discrete and separate nature of the molecular concept usually requires that molecular ions be present only in well-separated form, such as a directed beam in a vacuum in a mass spectrograph.
However, the law of mass action is valid only for concerted one-step reactions that proceed through a single transition state and is not valid in general because rate equations do not, in general, follow the stoichiometry of the reaction as Guldberg and Waage had proposed ( see, for example, nucleophilic aliphatic substitution by S < sub > N </ sub > 1 or reaction of hydrogen and bromine to form hydrogen bromide ).
However, iron is the most abundant element ( by mass ) making up the Earth, and oxygen is the most common element in the Earth's crust.
However, not all regulations have been removed, and encryption registration with the U. S. Bureau of Industry and Security is still required to export " mass market encryption commodities, software and components with encryption exceeding 64 bits " ().
However, the deprecated parts-per notation is often used to describe small mass fractions.
However, the deprecated parts-per notation is often used to describe small mass ratios.
However if the radial-velocity of the planet itself can be distinguished from the radial-velocity of the star then the true mass can be determined.
However, from the political scene following the post-1968 radicalization, the Soviet adaptation spread to the editors of mass media, sparking strong forms of self-control, self-censorship and pro-Soviet attitudes.
However, their velocities are too large for them to remain gravitationally bound by their mutual attractions, implying the presence of either an additional invisible mass component, or an additional attractive force besides gravity.
However this is still not enough mass to keep the galaxies in the cluster.
However, more recent scholarship shows that this mass was in fact composed before the cardinals convened to discuss the ban ( possibly as much as ten years before ).
" However, in these UN statements it was never made clear that it was only Iraq that was using chemical weapons, so it has been said that " the international community remained silent as Iraq used weapons of mass destruction against Iranian as well as Iraqi Kurds " and it is believed that the " United States prevented the UN from condemning Iraq ".
However this changed dramatically with the Great Famine of the mid-19th century, which created conditions of mass starvation and emigration.
" However, due to various outside pressures, the statements never clarified that only Iraq was using chemical weapons, and retrospective authors have claimed, " The international community remained silent as Iraq used weapons of mass destruction against Iranian as well as Iraqi Kurds.
However, if an object located at the point drifted closer to one of the masses, the gravitational attraction it felt from that mass would be greater, and it would be pulled closer.
However, the distinction between mass and weight becomes important for measurements with a precision better than a few percent ( because of slight differences in the strength of the Earth's gravitational field at different places ), and for places far from the surface of the Earth, such as in space or on other planets.
However, every experiment to date has shown these values to be proportional, and this proportionality gives rise to the abstract concept of mass.
However, it is possible to identify some of the significant steps towards our modern understanding of gravitational mass and its relationship to the other mass phenomena.

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