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What Elements Belong in Group 3 of the Periodic Table?
2018The question of precisely which elements should be placed in group 3 of the periodic table has been debated from time to time with apparently no resolution. This question has also received a recent impetus from several science news articles following an article in Nature Magazine in which the measurement of the ionization energy of the element ...
Eric R. Scerri, William Parsons
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Peroxides of the Group Two Elements of the Periodic Table
1966All elements of the second group, with the exception of beryllium [1], form peroxide compounds. Peroxides of calcium, strontium, and barium belong to the M2+O2 2- type; while peroxides of magnesium, zinc, and cadmium, of general formula MO2 • xH2O, probably belong to the HO—M—OOH type where the covalent bond between the hydroperoxyl group and the metal
Il’ya Ivanovich Vol’nov +1 more
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Peroxides of the Group One Metals of the Periodic Table
1966All alkali metals form peroxides. The peroxides of all the alkali metals, with the exception of lithium, can be synthesized by direct oxidation of the metal with oxygen at atmospheric pressure. The reactivities of sodium, potassium, rubidium, and cesium result from the fact that these metals have large atomic radii and low ionization potentials ...
Il’ya Ivanovich Vol’nov +1 more
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Lanthanides and actinides among other groups of elements of the periodic table
Radiochemistry, 2007The extent to which actinides (An) are similar to other elements of the periodic table is discussed. Actinides show certain similarity with transition metals in trends in variation of the stability of the highest and lowest oxidation states with increasing atomic number.
N. B. Mikheev +2 more
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The periodic table: The 6d-5f mixed transition group
Journal of Chemical Education, 1952With relatively few modifications, the Bohr-type periodic table presented by Glocker and Popov can be made to reflect more instructively the rather complex relationships obtained in the neighborhood of the 4f or gadolinium transition group and, more importantly, in the 6d-5f sequence extending from actinium through the region of uranium and the ...
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Oxide Adhesion on Periodic Table Group 4 and 5 Metals
1989The oxide scale adhesion on Periodic Table group IV and V metals is evoked through two new concepts in high temperature corrosion: bistability and solute elastic effect.
M. Lallemant +4 more
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Group theoretical aspects of the periodic table of the elements
Journal of Molecular Structure: THEOCHEM, 1989Abstract Several attempts to obtain the overall (approximate) symmetry of the periodic system of the elements are discussed. The symmetries are analysed in terms of the prediction of magic numbers in Meyer-Mendeleev's table; this is shown to be a still elusive goal. Other group-theoretical aspects are, however, better understood, such as the roles of
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Walking Down the Chalcogenic Group of the Periodic Table: From Singlet to Triplet Organic Emitters
Chemistry – A European Journal, 2015AbstractThe synthesis, X‐ray crystal structures, ground‐ and excited‐state UV/Vis absorption spectra, and luminescence properties of chalcogen‐doped organic emitters equipped on both extremities with benzoxa‐, benzothia‐, benzoselena‐ and benzotellurazole (1X and 2X) moieties have been reported for the first time.
Kremer Adrian +7 more
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Thermal and thermodynamic data concerning the selenites from group IB in the periodic table
Thermochimica Acta, 1984Abstract The thermal dehydration of CuSeO 3 ·2 H 2 O, and the thermal dissociation of CuSeO 3 and Ag 2 SeO 3 are studied. The mechanism of these processes is suggested. The heats of phase transitions and the specific heats of the corresponding compounds are determined.
G.G. Gospodinov, B.G. Bogdanov
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Advances in polymerization catalysts based on 4 and 5F groups of periodic table
Inorganica Chimica Acta, 1984Abstract So far, in the development of new catalyst systems, the attention of chemists has been customarily addressed to catalyst activity, regio and stereospecificity. Nowadays, the impact of catalyst systems on other aspects of a chemical process has to be taken in due account, in relation to the increased cost of raw materials and energy.
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