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769 results
  1. NLM Digital Collections - Handbook of radioactivity and tracer methodology 
    Publication: Dayton, Ohio : United States Air Force, Air Material Command, 13 February 1948
    ... gas ions. The presence of appreciable quantities of negative ion-forming gases such as Og, HgO, and the ... desirable operating characteristics. The slow collection time of negative ions compared to electrons tends to pro- long the ...
  2. NLM Digital Collections - Dictionary of German scientific terms 
    Publication: Washington, D.C. : Military Intelligence Division, War Department, 1945
    ... valence bonds connect- ing the positive and the negative ions of the molecule. E.g., for HQ the ... certain con- ditions. Anion: anion. One of the negative ions moving toward the anode in an electrolytic cell ...
  3. NLM Digital Collections - Immunity in natural infectious diseases 
    Publication: Baltimore : Williams & Wilkins Company, 1924
    ... system becomes a mono-, bi-, tri-, or quadrivalent negative ion. The atom of hydrogen, for example, is formed ... and in adding an electron they become monovalent negative ions. With the atoms of magnesium (Mg) and of ...
  4. ... equals the sum of the charges of the negative ions. The two kinds of ions are in electrical ... positive ions to one electrode, and of all negative ions to the other. When the ions come in ...
  5. ... of the gas. At the same time the negative ions are discharged at the anode, and chlorine is ... into a hydrogen ion (H+) and some other negative ion, in this case the chlorine ion. All acids ...
  6. NLM Digital Collections - Handbook of the Hospital Corps, United States Navy, 1939 (Text) 
    Publication: Washington : Bureau of Medicine and Surgery, 1939
    ... hence is a positive ion or cation. A negative ion is formed when an atom receives, or gains, ... then present in its structure it is a negative ion or anion. In this form the individual atoms ...
  7. NLM Digital Collections - Radiological defense (Volume 2) 
    Publication: [Washington, DC] : U.S. Government Printing Office, 1948-1950
    ... electrically charged particles called ions, positive ions and negative ions being produced in equal numbers. The rate of ... to the negatively charged part (cathode), while the negative ions (or electrons) are attracted to the positively charged ...
  8. NLM Digital Collections - The laboratory study of chemistry 
    Publication: New York : Henry Holt and Company, c1918
    ... forming a compound with the radical constituting the negative ion, it gradually disappears, forming a salt which immediately ... the anode cannot be attacked, some of the negative ions, after losing their charges, escape as gases or ...
  9. ... the molecules and atoms together producing positive and negative ions. If left alone, the posi- tive and negative ions will neutralize each other and no electrical effect ...
  10. NLM Digital Collections - Radiological defense (Volume 1) 
    Publication: [Washington, DC] : U.S. Government Printing Office, 1948-1950
    ... field, they will move in opposite directions, the negative ions toward the positively charged anode and the positives ... are primarily those gases which tend to form negative ions instead of positive ions. If negative ions are ...
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