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Chemical reactivity and trends

The small size of lithium frequently confers special properties on its compounds and for this reason the element is sometimes termed anomalous . For example, it is miscible with Na only above 380° and is immiscible with molten K, Rb and Cs, whereas all other pairs of alkali metals are miscible with each other in all proportions. (The ternary alloy containing 12% Na, 47% K and 41% Cs has the lowest known mp, —78°C, of any metallic system.) Li shows many similarities to Mg. This so-called diagonal relationship stems from the similarity in ionic size of the two elements / (Li ) 76pm, / (Mg ) 72pm, compared with / (Na ) 102pm. Thus, as first noted by Arfvedson in establishing lithium as a new element, LiOH and LiiCOs are much less soluble than the corresponding [Pg.76]

Structural Inorganic Chemistry, 5th edn., Oxford University Press, Oxford, 1984, 1382 pp. [Pg.76]

Chemical reactivity and trends Table 22.1 Some properties of Group 5 elements... [Pg.979]

See other pages where Chemical reactivity and trends is mentioned: [Pg.76]    [Pg.112]    [Pg.224]    [Pg.225]    [Pg.754]    [Pg.755]    [Pg.757]    [Pg.804]    [Pg.805]    [Pg.807]    [Pg.948]    [Pg.958]    [Pg.959]    [Pg.979]    [Pg.1005]    [Pg.1005]    [Pg.1044]    [Pg.1075]    [Pg.1077]    [Pg.1116]    [Pg.1149]    [Pg.1149]    [Pg.1177]    [Pg.1177]    [Pg.1179]    [Pg.1205]    [Pg.1205]    [Pg.1207]    [Pg.1235]    [Pg.1235]    [Pg.1237]    [Pg.1264]    [Pg.1265]   


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