Question

Question-

How is modern periodic table better than mandleev's periodic table. state the drawbacks( If any) present in modern periodic table.

Plz any Moderator give answer coz on Wednesday my science exam..........
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Answer 1

$\bf\huge\mathcal\red{Heya}$
Modern periodic table is better than Mendeleev's period table becoz
in Modern periodic table:
➡The position of isotipes are clear
➡Position of cobalt and nickle are defined
➡Placement of hydrogen is well explained
➡Also answerex the question,"Is it possible to have an element between Hydrogen and Helium" i.e no,becoz atomic no. can only be a whole no.

Answer 2

Answer:

The first periodic table in the row and column form we see today was invented by dmitri mandleev's in 1869. it included the properties of all of the known elements of that time . The periodic table has long since, Filled in Maldleev's Gap and has added new elements . it has even changed the weight of other elements.

Differences =)

In the modern periodic table , the elements are arranged in order of increasing atomic number more elements are in modern periodic table which have been discovered since , Mandleev's time.

Modern periodic table is better from Mandleev's table because : Modern periodic table is accepted at first .