А. Длина связей

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Для обозначения расстояний между атомами в молекуле используется понятие ковалентный радиус. Длина простой связи является величиной аддитивной: она примерно равна сумме ковалентных радиусов двух атомов. Двойная связь на 10-20 % короче простой связи. В последнее время атомные радиусы и расстояние между атомами принято выражать в пикометрах (пм, 1 пм = 10-12 м). Ранее длину связей представляли в ангстремах (Å , 1 Å = 100 пм).


Основы биохимии. Общая химия / Строение молекул

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Introductory Microbiology / As a component of biology, Plant Pathology enjoyed a prestigious position and its applied aspects; plant disease management was an integral part of agroecosystem management. In the era of globalization, our country is progressing very fast in agricultural sector by developing innovative techniques aIntroductory Microbiology
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