Since lithium is the least dense elemental metal these alloys are significantly less dense than aluminium.
Since beryllium is the second least dense elemental metal, these alloys are significantly less dense than aluminium.
CHU 13 includes essential minerals and trace elements that are required by algae for growth, but does not include a carbon source and so is only appropriate for growth of phototrophs.
Ferroalloy refers to various alloys of iron with a high proportion of one or more other elements such as manganese, aluminium, or silicon.
It is a metal-poor star, which means it has a low abundance of elements heavier than helium.
The abundances of 21 elements overall are more similar to the Sun than any other known solar twin.
Chemikus, localized to Chemicus for the English-speaking market, attempts to teach chemistry by exploring a land whose rooms are linked by an underground railway whose controls are in the form of the periodic table of the elements.
They are the building blocks of the multiverse, the elements and energies from which all of the material universe (the Prime Material Plane, or, in the 3rd Edition, simply Material Plane) is made.
The Elements that make up the molecule are disassembled into separate atoms and scattered around the play field.
Early funding was meager, but in 1940, scientists at Columbia University and the University of California demonstrated the weapons potential of the isotope uranium-235 and the newly discovered element plutonium.
It provides at least two spectral samples per resolution element taking full advantage of the spectral resolution.
In melted zones their heavier elements sank to the center, while lighter elements rose to the surface.
A ternary acid is an acid that has the elements hydrogen and oxygen along with another element, often a nonmetal.
For the special case of the formation of a compound from the elements, the change is designated ΔHform and is a weak function of temperature.
Dr. Oechslin then followed the Astrolabium up with two other astronomical watches: in 1988 the Planetarium Copernicus (named after the stargazing theaters called planetariums and of astronomer Copernicus) and in 1992 the Tellurium Johannes Kepler (named after the element tellurium and astronomer Johannes Kepler).
This is a common construction also seen in Itterby, one of the parishes which formed Cleethorpes, and also Ytterby in Sweden, which is relatively frequent in Scandinavia and from which derive the names of the Chemical elements Yttrium, Ytterbium, Terbium and Erbium.
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In 1862, a year before John Alexander Reina Newlands published his classification of the elements, de Chancourtois created a fully functioning and unique system of organizing the chemical elements.
Austrium is the name of a new chemical element proposed by Eduard Linnemann in 1886.
The chemical element cerium was first discovered in Bastnäs in 1803 by Jöns Jakob Berzelius and Wilhelm Hisinger in the form of its oxide, ceria, and independently in Germany by Martin Heinrich Klaproth.
Chemical Galaxy is a new representation by Philip Stewart of the periodic system of the elements, better known in tabular form as the periodic table, based on the cyclical nature of characteristics of the chemical elements (which depend principally on the valence electrons).
It has been speculated by futurologist Ray Kurzweil that by the end of the 21st century it might be possible by using femtotechnology to create new chemical elements composed of exotic baryons that would eventually constitute a new periodic table of elements in which the elements would have completely different properties than the regular chemical elements.
Helvetium was the suggested name of chemical element number 85, now known as astatine, given to it by the Swiss chemist Walter Minder.
Greenstein did important work in determining the abundances of the elements in stars, and was, with Maarten Schmidt, the first to recognize quasars as compact, very distant sources as bright as a galaxy.
Ylem is a term that was used by George Gamow, Ralph Alpher, and their associates in the late 1940s for a hypothetical original substance or condensed state of matter, which became subatomic particles and elements as we understand them today.