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CBSE Class 10 Answered

Modern period table

 

Asked by waghmaresheetal78 | 27 Dec, 2021, 05:02: PM
Expert Answer
  • In 1913, Henry Moseley proved that atomic number is the fundamental property than its atomic mass.
  • Atomic number (Z) of an element is the number of protons in the nucleus of the atom and also represents the number of electrons in the outermost shells.
  • Mendeleev’s Periodic law was modified and atomic number was adopted as the basis of Modern Periodic Table.
  • Modern Periodic Law: Properties of elements are a periodic function of their atomic number.
  • The periodic table based on modern periodic law is called the Modern Periodic Table.
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CBSE_X_Chemistry_Periodic Classification of Elements_Study Material
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