Long form of periodic table

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Gaurav Seth 5 years, 1 month ago
The modern or long form of the periodic table is based on the modern periodic law. The table is the arrangement of elements in increasing order of their atomic numbers. The modern periodic table is the present form of the periodic table. And it consists of 18 vertical columns and 7 horizontal rows.
Modern Periodic Table
Groups in the Modern Periodic Table
Groups are the vertical columns in the modern or long form of the periodic table.
There are 18 groups in the periodic table.
These groups are numbered from 1 to 18.
Each group consists of elements having the same outer shell electronic configuration.
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