Question

What is periodicity in properties of element with respect to the modern periodic table?

Answer 1

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Repetition of properties after a certain interval is called periodicity of properties. If elements are arranged in increasing order of their atomic number in the periodic table, then elements repeat its properties after a definite interval.This repetition of properties is known as periodicity of properties.

The cause of periodicity of properties of elements is due to the repetition of similar electronic configuration of their atoms in the outermost energy shell after certain regular interval.

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