"If all the elements are arranged in the order of their atomic weights, a periodic repetition of properties is obtained. This is expressed by the law of periodicity."
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Interactive periodic table. Clicking on an element brings up a list of general properties and data, and information on its discovery, history, uses, geologic
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"If all the elements are arranged in the order of their atomic weights, a periodic repetition of properties is obtained. This is expressed by the law of periodicity."
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Home About This Site Comments Help Links Window Version. Show Table With: Name
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This WebElements periodic table page contains the essentials for the element aluminium
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