Question

How could the Modern periodic table remove various anomalies of Mendeleev’s periodic table?

Answer 1

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As modern periodic law is THE PHYSICAL AND CHEMICAL PROPERTIES ARE THE PERIODIC FUNCTION OF THEIR ATOMIC NUMBERS.
this atomic number theory removes anamolus series (the elements which have same atomic weight put in same slot)in the way that elements have different weight but same atomic number .
so in this way modern periodic table remove various anomalies.
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Answer 2

Answer:

Various anomalies of Mendeleev’s Periodic Table removed as follows in the Modern Periodic Table:

→ Elements are arranged in the increasing order of their atomic number in Modern Periodic Table, thus there was no need for keeping more than one element in one slot.

→ In Modern Periodic Table there was no problem of the place of isotopes, as isotopes have same atomic mass with different atomic numbers.

→ Elements having same valence electron are kept in same group.

→ Elements having same number of shells were put under the same period.

→ Position of hydrogen became clarified in as it is kept in the group with the elements of same valence electrons.