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# How many columns are in a 3 by 7 table?

Updated: 9/17/2023

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The periodic table has 7 rows and 32 columns.

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Periodic Table is organised in rows and tables.Elements are arranged according to Atomic Number.There are 7 rows and 18 columns.

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Modern periodic table has 7 periods and 18 groups.

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Rows of the periodic table are called periods.

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The columns are called groups and rows are called periods. There are 18 groups and 7 periods.

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In the periodic table of the elements there are 7 periods and 18 groups. The rows are called periods and columns are called groups. You may be getting confused by the lanthanides and actinides. These groups of elements are found in two rows at the bottom and seem to not be a part of the table. However, if you find and extended version of the table you will see that, technically, these two rows belong in Periods 6 and 7.

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