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3 edition of The origin of fluorine, sodium, and aluminum in the galactic cosmic radiation found in the catalog.

The origin of fluorine, sodium, and aluminum in the galactic cosmic radiation

Brian G. Cartwright

The origin of fluorine, sodium, and aluminum in the galactic cosmic radiation

by Brian G. Cartwright

  • 123 Want to read
  • 34 Currently reading

Published .
Written in English


Edition Notes

Statementby Brian G. Cartwright.
Classifications
LC ClassificationsMicrofilm 40138 (Q)
The Physical Object
FormatMicroform
Paginationp. 299-310.
Number of Pages310
ID Numbers
Open LibraryOL2162230M
LC Control Number88893484

Fluorine is the first element in the group of halogens which occupies the 17th column of the periodic table. Fluorine atoms have 9 electrons and 9 protons. It is a fairly rare element in the universe, but is the thirteenth most common element in the Earth's crust. Insoluble in water. Synthesized by fusion of sodium fluoride and aluminum fluoride as a electrolyte in the reduction of alumina to aluminum metal. Occurs in nature as the mineral cryolite. Aqueous suspensions of powdered sodium aluminum fluoride are used as insecticides.

The "fluoride" in toothpaste is usually sodium fluoride, a compound of sodium and fluorine. Fluorine on its own is an element. Asked in Atoms and Atomic Structure. This book is Creative Commons Attribution License and you must attribute OpenStax. Attribution information If you are redistributing all or part of this book in a print format, then you must include on every physical page the following attribution.

Compare Fluorine and Sodium on the basis of their properties, attributes and periodic table facts. Compare elements on more than 90 properties. All the elements of similar categories show a lot of similarities and differences in their chemical, atomic, physical properties and uses. Ionizing radiation (ionising radiation) is radiation that carries sufficient energy to detach electrons from atoms or molecules, thereby ionizing them. Ionizing radiation is made up of energetic subatomic particles, ions or atoms moving at high speeds (usually greater than 1% of the speed of light), and electromagnetic waves on the high-energy end of the electromagnetic spectrum.


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The origin of fluorine, sodium, and aluminum in the galactic cosmic radiation by Brian G. Cartwright Download PDF EPUB FB2

The abundances of F, Ne, Na, Mg, Al, and Si relative to oxygen in the galactic cosmic radiation in the to MeV kinetic energy per nucleon interval measured by the University of Chicago charged particle telescope on board the IMP-S satellite are reported, as well as the abundance ratio F(F/O) above 1 GeV per nucleon kinetic energy measured by the same experiment.

Title: The Origin of Fluorine, Sodium, and Aluminum in the Galactic Cosmic Radiation Authors: Cartwright, B.

Journal: Astrophysical Journal, vol. p Bibliographic Code: ApJ C. Complete bibliographic record Other article.

F, Na and Al origin in galactic cosmic radiation, investigating production as spallation fragments and generation in sourcAuthor: B. Cartwright. F, Na and Al origin in galactic cosmic radiation, investigating production as spallation fragments and generation in source NASA Subject Category SPACE RADIATION.

As an astrophysicist, he published more than 20 articles for professional journals on such topics as “The Origin of Fluorine, Sodium and Aluminum in the Galactic Cosmic Radiation.”.

The four-center reaction F2 + Na2 → F + NaF + Na(3²P) has been studied in a crossed molecular-beam experiment. The excitation function for the production of this electronically excited state.

Kent A. Watson, John W. Connell, in Carbon Nanotechnology, Radiation/heavy ion shielding. Galactic cosmic rays are a significant source of radiation for spacecraft, particularly in deep space missions [86, 87].Space exploration requires radiation protection to protect astronauts and electronic equipment for applications such as space suits, lunar/planetary rovers, lunar/planetary.

Neutron Transport Associated with the Galactic Cosmic Ray Cascade for a beam of fluorine ions at MeV per nucleon incident on semi-infinite and finite aluminum slabs.

against the Author: Robert Singleterry. Fluorine is added to city water supplies in the proportion of about one part per million to help prevent tooth decay. Sodium fluoride (NaF), stannous(II) fluoride (SnF 2) and sodium monofluorophosphate (Na 2 PO 3 F) are all fluorine compounds added to toothpaste, also to help prevent tooth decay.

Editorial review: Interactions between fluorine and aluminum 75 Fluoride 35 (2) incisors, tibia and sternum of rabbits The results confirm the inhibitory properties of aluminum on fluorine uptake.

Furthermore, exposure of rabbits to 50 ppm F during 10 weeks led to the accumulation of aluminum. Accordingly, the book covers not only the 'inorganic' chemistry of the elements, but also analytical, theoretical, industrial, organometallic, bio-inorganic and other cognate areas of chemistry.

The authors have broken with recent tradition in the teaching of their subject and adopted a new and highly successful approach based on descriptive. Fluorine is found in nature only in the form of its chemical compounds, except for trace amounts of the free element in fluorspar that has been subjected to radiation from a rare element, it makes up about percent of Earth’s crust.

The principal fluorine-containing minerals are (1) fluorspar, deposits of which occur in Illinois, Kentucky, Derbyshire, southern Germany, the.

Start studying Science Learn vocabulary, terms, and more with flashcards, games, and other study tools. as in aluminum foil, or beaten into complex shapes. are more strongly pulled toward the fluorine atom, the molecule is _____.

Polar ____ The elements in a row of the periodic table. are called groups ____ In an atom, the number. Each naturally occurring isotope has a tale to tell about the history of matter, and each has its own special place in cosmic evolution.

This volume aims to grasp the origins of our material world by looking at the abundance of the elements and their isotopes, and how this is interpreted within the theory of nucleosynthesis. Each isotope of elements from Hydrogen to Gallium is covered in detail.

Brian G. Cartwright (born ) is a senior lawyer and former astrophysicist. From he was General Counsel for the Securities and Exchange Commission of the USA.

Career. On January 3, the SEC Commission Chair Christopher Cox officially appointed ex-Latham & Watkins partner Brian G. Cartwright as its top lawyer, replacing Giovanni Prezioso. Cartwright holds a J.D. degree from Born: New stars form from the left-overs in an eternal cosmic cycle, meaning that the more recently a star formed, the higher the abundance of the heavier elements in it.

The branch of astronomical research. Chemical industry - Chemical industry - Fluorine: The fluorine industry is intimately related to the production of aluminum. Alumina (aluminum oxide, Al2O3) can be reduced to metallic aluminum by electrolysis when fused with a flux consisting of sodium fluoroaluminate (Na3AlF6), usually called cryolite.

After starting the process, the cryolite is not used up in massive quantities, but a small. It is a silvery-white, soft, non-magnetic and ductile metal in the boron group. By mass, aluminium makes up about 8% of the Earth's crust, where it is the third most abundant element (after oxygen and silicon) and also the most abundant metal.

Occurrence of aluminium decreases in the Earth's mantle Alternative name: aluminum (U.S., Canada). Aluminium or aluminum (see below) is a chemical element in the boron group with symbol Al and atomic number It is a silvery-white, soft, nonmagnetic, ductile mass, aluminium makes up about 8% of the Earth's crust; it is the third most abundant element after oxygen and silicon and the most abundant metal in the crust, though it is less common in the mantle below.

Fluorine does not belong. They are referring to elements located within the third period. sodium, aluminum and sulfur are all in the third period (row), while F is in the second period. 0 0 0.

Origin of name: from the Latin word "fluere" meaning "to flow". In a recipe containing Bohemian emerald (now known as calcium fluoride, CaF 2) was used to etch glass. It seems that George Gore made a little fluorine through an electrolytic process but his apparatus exploded when the fluorine produced reacted with hydrogen from the other.Fluorine is the chemical element in the periodic table that has the symbol F and atomic number 9.

Atomic fluorine is univalent and is the most chemically reactive and electronegative of all the.Each fluorine atom has seven electrons in the valence shell. It needs 8 to form a stable octet. Therefore each atom needs one electron. The fluorine atoms can share ONE PAIR of electons to form a stable octet.

This forms a SINGLE covalent bond.