The New Book of KnowledgeGrolier Incorporated, 2002 - 21 sider An illustrated encyclopedia with articles on history, literature, art and music, geography, mathematics, science, sports, and other topics. Some articles include activities, games, or experiments. |
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Side 194
... elements in compounds that are very hard to break down . Aluminum compounds are found in many minerals , and all clay contains aluminum . Many of the most beautiful precious stones are basically nothing but colored aluminum compounds ...
... elements in compounds that are very hard to break down . Aluminum compounds are found in many minerals , and all clay contains aluminum . Many of the most beautiful precious stones are basically nothing but colored aluminum compounds ...
Side 483
... element , usually referred to simply as an element . When dif- ferent types of atoms combine , they form molecules of a chemical compound , often re- ferred to as a compound - a substance made up of two or more elements in which the ele ...
... element , usually referred to simply as an element . When dif- ferent types of atoms combine , they form molecules of a chemical compound , often re- ferred to as a compound - a substance made up of two or more elements in which the ele ...
Side 485
... elements . Another 20 elements , often called artificial elements , have been produced in limited quantities in nuclear reactors or scientific lab- oratories . All of the artificial elements are very unstable , which means they quickly ...
... elements . Another 20 elements , often called artificial elements , have been produced in limited quantities in nuclear reactors or scientific lab- oratories . All of the artificial elements are very unstable , which means they quickly ...
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