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Distinguish between the modern form of periodic table and Mendeleev form of periodic table

Distinguish between the modern form of periodic table and Mendeleev form of periodic table
 

Grade:8

1 Answers

Navneet jha
63 Points
2 years ago
  • MODERN FORM OF PERIODIC TABLE - 
  • This periodic table is based on atomic numbers.
  • There are a total of 18 groups and 7 periods.
  • Elements are arranged based on the increasing order of their atomic numbers.
  • Isotopes are kept in the same place due to their atomic numbers being the same.
  • MENDELEEV FORM OF PERIODIC TABLE -
  • This periodic table based on atomic mass
  • There are a total of 7 groups and 6 periods
  • Elements are arranged based on their increasing in atomic mass
  • There is no place allotted for isotopes

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