The New Encyclopædia BritannicaEncyclopædia Britannica, 1992 |
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Page 155
... atoms and a hydrogen atom , and the carbon atoms share three pairs of electrons ; acetylene contains a carbon - carbon triple bond , usually denoted by H - C = C - H . Some covalently bonded molecules exist in which one of the ...
... atoms and a hydrogen atom , and the carbon atoms share three pairs of electrons ; acetylene contains a carbon - carbon triple bond , usually denoted by H - C = C - H . Some covalently bonded molecules exist in which one of the ...
Page 156
... atom in an organic molecule . In most compounds , the elements combine in ratios representing whole numbers . In alu- minum oxide ( Al2O3 ) , for instance , aluminum atoms combine with oxygen atoms in a ratio of 2 to 3. There is a group ...
... atom in an organic molecule . In most compounds , the elements combine in ratios representing whole numbers . In alu- minum oxide ( Al2O3 ) , for instance , aluminum atoms combine with oxygen atoms in a ratio of 2 to 3. There is a group ...
Page 159
... atoms are not indivisible but made of smaller particles of opposite electri- cal charge and vastly different masses ... atoms or groups of atoms are mediated by the interaction of their electrons . This inter- action may be expressed by ...
... atoms are not indivisible but made of smaller particles of opposite electri- cal charge and vastly different masses ... atoms or groups of atoms are mediated by the interaction of their electrons . This inter- action may be expressed by ...
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