COMPARISON OF THE CHEMISTRY OF CIS-AND TRANS-URANIDES WITH THAT OF LANTHANIDES AND OF TRANSITION METALS
The existence of the actinide series was rejected and the elements following actinium were divided into two sharply differing groups named cis- and trans-uranides. According to this classification the elements belonging to the first group are the homologues of the family of transition metals whiie the second group consists of the homologues of the second half of the lanthanide series. The separation is based on valency observations, electrochemical properties, tendency toward hydrolysis, and complex formation and analogies observed in the fields of atomic and ion dimensions. The elements of the 7th Period also differ from the lanthanides from the point of view of electronic structure. On the basis of available information it seems justified to divide the 5f elements (z = 92-103) into two groups, the uranides and the curides. An extensive bibliography and a history of the chemistry of the elements discussed are also included. (OTS)
- Research Organization:
- Curie Lab., Paris
- NSA Number:
- NSA-17-006090
- OSTI ID:
- 4752392
- Journal Information:
- Magy. Tud. Akad. Kem. Tud. Oszt. Kozlemen, Vol. Vol: 18; Other Information: Orig. Receipt Date: 31-DEC-63
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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A FEW REMARKS ON M. HAISSINSKY'S ARTICLE: "COMPARISON OF THE CHEMISTRY OF CIS-AND TRANS-URANIDES WITH THAT OF LANTHANIDES AND OF TRANSITION METALS."