價格：免費
更新日期：2018-12-01
檔案大小：28.4 MB
目前版本：1.1.8
版本需求：需要 iOS 9.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
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The periodic table is a tabular display of the chemical elements, organised on the basis of their properties. Elements are presented in increasing atomic number. The main body of the table is a 18 × 7 grid, with gaps included in to keep elements with similar properties together, such as the halogens and the noble gases. These gaps form four distinct rectangular areas or blocks. The f-block is not included in the main table, but rather is usually floated below, as an inline f-block would make the table impractically wide. The periodic table accurately predicts the properties of various elements and the relations between properties. As a result, it provides a useful framework for analysing chemical behaviour, and is widely used in chemistry and other sciences.
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支援平台：iPhone, iPad