Science, asked by nnnnnn4, 1 year ago

differentiate between the arrangement of elements in Mendeleev periodic table and Modern Periodic Table

Answers

Answered by Shyam8055
2
In Mendeleev's periodic table elements ararranged according to atomic mass

But in modern periodic table elements ararranged according to atomic number

Anonymous: in mendleevs the elements are arranged in the increasing order of their atomic masses and in mordern elements are arrangedin the increasing order of atomic no.
Answered by ItzBrainly28
0

Answer:

  • Mendeleev's periodic table
  1. elements are arranged in increasing order of their atomic masses.
  2. It is not divided into any blocks.
  3. There are 8 groups.
  4. Isotopes could not be placed properly.

  • Modern periodic table
  1. Elements are arranged in increasing order of their atomic numbers.
  2. It is divided into four blocks, namely s-block,p-block,d-block and f-block.
  3. There are 18 groups.
  4. Isotopes occupy the same position as the element.

Hope you understood mate!!!

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