Question

explain periodic classification of elements full lesson points wise please​

Answer 1

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Periodic Classification of Elements – Present form of periodic table. Based on the modern periodic law, the elements are arranged into rows and columns based on their atomic number. There are 18 columns, called groups and 7 rows, called periods. ... Also its properties are very similar to other elements of that group.

Answer 2

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Periodic Classification of Elements – Present form of periodic table. Based on the modern periodic law, the elements are arranged into rows and columns based on their atomic number. There are 18 columns, called groups and 7 rows, called periods. ... Also its properties are very similar to other elements of that group.