Valency, auxiliary primary

A group represented within a bracket is held together by the primary and auxiliary valences and functions as a stable complex ion. In the case of dichlorotetrammine cobaltic chloride, for instance, the complex univalent cation, [Co(NH8)4Cl2]+, behaves as a univalent ion. The two chlorine atoms within the complex are not ions as they are not precipitated by silver nitrate. Similarly, trichlorotriammine cobaltic chloride, [CoCNHs Cls], is a neutral complex, and has but a very... 

Note that the correct relation between coordinate valency and Werner s auxiliary or secondary valency (p. 468, col. 1, para. 3 up) is secondary valency = coordinate valency - primary valency used in coordination. ... 

It is true of course,that macroscopic chunks of matter are quite extremely close to electroneutrality.The Nebenvalenz (secondary or "auxiliary" valency) of a given element in a definite primary valency is the (preferred) number N of immediate-neighbor ligating atoms X. 

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