KSIĄŻKI POWIĄZANE ZE SŁOWEM «QUADRIVALENCY»
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1
The collected works of Sir Humphry Davy ...: Discourses ...
Hom/ray, I. F. — Molecular Refractions of Dimethylpyrone and its Allies, and the
Quadrivalency of Oxygen. Vac. Molecular Refractions of some Liquid Mixtures of
Constant Boiling Point. Vac. Inglis, J. K. H., and J. E. Coates. — The Densities of ...
Sir Humphry Davy, John Davy, 1906
2
A Comprehensive Treatise on Inorganic and Theoretical Chemistry
There is no objection to the assumed quadrivalency of oxygen. In fact, it is highly
probable that oxygen, like its companions — sulphur, selenium, and tellurium —
in the periodic system can be bi-, quadri-, or sexi-valent. 0. Wolkowicz ]5 ...
Joseph William Mellor, 1922
3
From Classical to Modern Chemistry: Some Historical Sketches
In 1858 an important paper which dealt with the quadrivalency of carbon and the
linking of carbon atoms was published by Couper. His approach to the subject
was on different lines from those adopted by Kekule, and he preceded him in ...
4
Valency, Classical and Modern
... acceptable solution only by applying the modern electronic theory (pp. 153,
169). GROUP IV (A) (a) Ti, Zr and Th As is to be expected in members of the A-
group, quadrivalency is maintained in all the more stable compounds of these
metals.
William George Palmer, 1959
5
Cotton in India: a monograph
Brown and Menzel (1952a) compared the degree of bivalency shown by the
triploid hybrids, Hirsuta x a diploid species, with the degree of quadrivalency
shown by the derived hexaploids. Quadrivalency in the hexaploids was much
less than ...
Indian Central Cotton Committee, B. L. Sethi, 1960
6
Proceedings of the Chemical Society
“Molecular refractions of dimethylpyrone and its allies, and the quadrivalency of
oxygen.” By Ida Frances Homfray. In m0st cases of associated compounds
containing oxygen, the quadrivalency of that element is probable, and the
observed ...
Chemical Society (Great Britain), 1906
7
Journal of the Chemical Society
The second formula is based on the assumption of the quadrivalency of oxygen.
This assumption, whilst it may explain the constitution of this hydrochloride, does
not satisfactorily explain the constitution of such compounds as 2(CH3)sPO ...
8
The Chemical News and Journal of Industrial Science: ...
Again, Ahrens and Stapler (Ben, r905, xxxviii., 3259) formulate the compound
obtained from ethylene dibromide thus :— the quadrivalency of oxygen, thus:
C1H5\O /Bl' cm,' \Mg.CH=.Cl-l1Br' The theoretical aspect of the Grignard reaction
has ...
9
Journal of the Chemical Society
The quadrivalency of vanadium is so strong that some compounds of V,Os
spontaneously lose oxygen to form compounds containing V204. Niobium and
tantalum are usually regarded as typical quinquevalent elements, but they have
also a ...
Chemical Society (Great Britain), Chemical Society (Great Britain)., 1948
10
Chemical Thermodynamics of Thorium
... the relatively abundant thermodynamic data for thorium species are of value
because of the position of thorium as the first member of the actinide series to
show quadrivalency. The data for Th(IV) species are therefore of considerable
value ...
Federico J. Mompean, Jane Perrone, Myriam Illemassène, 2008
