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" These remarkable facts can be explained by a very simple and obvious assumption, viz. that one or more pairs of bonds belonging to one atom of the same element can unite and, having saturated each other, become, as it were, latent. "
Lecture Notes for Chemical Students: Inorganic chemistry.-v.2. Organic chemistry - Page 21
by Sir Edward Frankland - 1870
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Quarterly Journal of the Chemical Society of London, Volume 4; Volume 19

Chemical Society (Great Britain) - Chemistry - 1866 - 556 pages
...explained by a very simple and obvious assumption, viz., that one or more pairs of bonds belonging to an atom of the same element can unite, and, having saturated...with each other, are, in like manner, rendered latent ; and the hexad sulphur becomes, by a similar process successively a tetrad in tricthylsulphiue-iodide,...
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Chemical News and Journal of Industrial Science, Volume 37

Chemistry - 1878 - 300 pages
...the same element can unite, and, having saturated each other, become as it were latent." For example, pentad nitrogen becomes a triad when one pair of its bonds becomes latent, and a monad when two pairs become latent by combination with each other. In 1856 the author read a paper before the Royal Society...
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Inorganic Chemistry: For Use in Science Classes and Higher and Middle Schools

W B. Kemshead - Chemistry, Inorganic - 1873 - 200 pages
...is this — " that one or more pairs of bonds belonging to one atom of the same element can nnite, and having saturated each other, become, as it were,...when two pairs, by combination with each other, are rendered latent. These conditions are represented graphically, thus — Pentad. Triad. Monad. And so...
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Inorganic chemistry

W B. Kemshead - 1877 - 254 pages
...elements. Dr. Frankland's explanation of this diversity of equivalence of the same element is this — " that one or more pairs of bonds belonging to one atom...when two pairs, by combination with each other, are rendered latent. These conditions are represented graphically, thus — Pentad. Triad. Monad. And so...
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Inorganic Chemistry

Sir Edward Frankland, Francis Robert Japp - Chemistry, Inorganic - 1885 - 732 pages
...were, latent. Thus, the pentad element, nitrogen, becomes a triad when one pair of its bonds l>econies latent, and a monad, when two pairs, by combination...graphically represented thus: Pentad. Triad. Monad. \\/ IO N _N— N— ou And in the case of sulphur: Adopting this hypothesis, it will be convenient...
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Protochemie: vom Stoff zur Valenz

Gerd Hanekamp - Chemistry, Physical and theoretical - 1997 - 274 pages
...bonds belonging to an atom of the samc element can unite, and, having saturated each other, bccome, äs it were, latent. Thus the pentad nitrogen becomes...with each other, are in like manner, rendered latent; and the hexad sulphur becomes, by a similar process successively a tetrad in triethylsulphineiodide,...
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