a) Why do we classify elements? (b) What are the two criteria used in the development of Modern Periodic Table? (c) What is meant by periodicity in properties of elements with reference to the periodic table?
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modern periodic table are arranged on the basis of atomic no
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A....We classify elements inorder to make study of element easier and study properties of many in short time.
B...In mordern periodic table. The elements are arranged in order of their increasing atomic no. .
C...periodicity is defined as the repeating properties of element after a fixed gap when arranged inoder of their increasing atomic no. .
B...In mordern periodic table. The elements are arranged in order of their increasing atomic no. .
C...periodicity is defined as the repeating properties of element after a fixed gap when arranged inoder of their increasing atomic no. .
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