Fact table contain at least one fact column or measurement column that represent sum or average. It contains primary keys of dimension tables as foreign keys.
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Fact tables contain quantitative data, typically numerical values, regarding the business processes like sales, revenue, quantity sold, etc. They often have foreign keys linking to dimension tables providing context for the data. Fact tables are usually large in size and are designed for quick and efficient aggregations and analysis.
Periods have same shells. There are 7 periods in periodic table.
The modern periodic table doesn't, but someone probably organized the periodic table by characteristics. A few elements have multiple characteristics of various groups or periods.... Ergo, it would be fitting to place an element in multiple spots of the table as seen fit. Hope this helps (:
The periodic table contains information about the structure and characteristics of elements, including atomic number, atomic mass, and electron configuration. It organizes elements based on their properties and helps predict the behavior of different elements.
Nonmetals are found to the right.
Group-1 are alkali elements.They have one valence electron.