State the Periodic Law on which the Modern Periodic Table is based.
2.
Covalent compounds are generally poor conductors of electricity. Why?
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●Modern Periodic Table is based on the Modern Periodic Law which states that “The physical and chemical properties of the elements are the periodic function of their atomic numbers”. The elements are arranged in order of increasing atomic numbers in horizontal rows called periods and vertical columns called groups.
●Electricity is not able to conduct efficiently through covalent compounds because there are no ions to move the electrical charge.
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