Question

1. (i) State modern periodic law.
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Answer 1

Answer:

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Explanation:

Modern periodic law states that the properties of elements are in periodic functions of their atomic numbers. In the "periodic table", the atoms are arranged in the manner with respect to their atomic numbers, electronic configuration, and chemical properties. The seven rows in the "periodic table" are called periods.

Answer 2

Answer:

The Modern periodic law states “The chemical and physical properties of elements are a periodic function of their atomic numbers”.