The New Encyclopaedia Britannica: Macropaedia (19 v.)Encyclopaedia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 818
... structure of isolated carbanions , the geometry of the methide ion is best represented by a pyramid with the carbon atom at the apex , a structure similar to that of the ammonia molecule . Both structures are shown below : ї + H ing ...
... structure of isolated carbanions , the geometry of the methide ion is best represented by a pyramid with the carbon atom at the apex , a structure similar to that of the ammonia molecule . Both structures are shown below : ї + H ing ...
Page 835
... structure with planes of mag- nesium ions . This lowers the symmetry and more reflec- tions appear in the X - ray diffraction pattern . from cal- cite Dolomite commonly occurs as a massive mineral and is only rarely observed to form ...
... structure with planes of mag- nesium ions . This lowers the symmetry and more reflec- tions appear in the X - ray diffraction pattern . from cal- cite Dolomite commonly occurs as a massive mineral and is only rarely observed to form ...
Page 866
... structure of the molecule is a resonance hybrid of these two structures - that is to say , that the molecular structure incorporates aspects of both forms but duplicates neither . When such resonance forms exist for a molecule it is ...
... structure of the molecule is a resonance hybrid of these two structures - that is to say , that the molecular structure incorporates aspects of both forms but duplicates neither . When such resonance forms exist for a molecule it is ...
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