The New Encyclopaedia Britannica: A - K.Encyclopaedia Britannica, 1997 |
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Page 752
... atomic scale and show atomlike features . MOLECULAR STRUCTURE Most chemists were confident that atoms really exist long before these sophisticated techniques provided such irrefutable evidence . In the 19th century , when the com ...
... atomic scale and show atomlike features . MOLECULAR STRUCTURE Most chemists were confident that atoms really exist long before these sophisticated techniques provided such irrefutable evidence . In the 19th century , when the com ...
Page 823
... atoms , the four bonds of the carbon atom are directed to the corners of a tetrahedron and make angles of about 109.5 ° with each other . The result is that carbon atoms not only can combine with one another indefinitely to give ...
... atoms , the four bonds of the carbon atom are directed to the corners of a tetrahedron and make angles of about 109.5 ° with each other . The result is that carbon atoms not only can combine with one another indefinitely to give ...
Page 826
... atom or by re- action of electron - rich groups with the positively charged atoms - namely , carbon or hydrogen - bonded to oxygen . An organic molecule in which an oxygen atom is bonded to two carbon atoms is known as an ether . Ether ...
... atom or by re- action of electron - rich groups with the positively charged atoms - namely , carbon or hydrogen - bonded to oxygen . An organic molecule in which an oxygen atom is bonded to two carbon atoms is known as an ether . Ether ...
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