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Classification of elements and periodicity in properties
Modern Periodic Law: Properties of elements are the periodic function to their atomic numbers. The periodicity in properties is due to repetition of similar outer shell electronic configuration at a certain regular intervals. In modern periodic table is based on modern periodic law in which elements are arranged in increasing order of their atomic numbers. In the modern periodic table, the elements are arranged in rows and columns. These rows and columns are known as periods and groups respectively. The table consists of 7 periods and 18 groups Period indicates the value of ‘n’ (principal quantum number) for the outermost or valence shell. Same number of electrons is present in the outer orbitals (that is, similar valence shell electronic configuration
Properties of elements are the periodic function to their atomic numbers.
The periodicity in properties is due to repetition of similar outer shell electronic configuration at a certain regular intervals.
In modern periodic table is based on modern periodic law in which elements are arranged in increasing order of their atomic numbers.
In the modern periodic table, the elements are arranged in rows and columns. These rows and columns are known as periods and groups respectively.
The table consists of 7 periods and 18 groups
Period indicates the value of ‘n’ (principal quantum number) for the outermost or valence shell.
Same number of electrons is present in the outer orbitals (that is, similar valence shell electronic configuration
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