relation between modern periodic table and human life
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Asked by Anuj A
Mar 1, 2015
Difference between Mendeleev's periodic table and modern periodic table
Difference between mendeleevs periodic table & mordern periodic table
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Syeda
Member since Jan 25, 2017
Answer.
Mendeleev's periodic table Modern periodic table
Mendeleev's periodic table is based on atomic mass
Modern periodic table is based on atomic number
Mendaleev's periodic table contains about 66 elements.
Modern periodic table contains about 112 elements
In Mendeleev's periodic table there were gaps for undiscovered elements.
Modern periodic table maintains uniformity.
In Mendeleev's periodic table noble gases were not placed (as they are not discovered at that time). In Modern periodic table noble gases in a seperate group named as group-18.
In Mendeleev's periodic table transition elements included with other elements In Modern periodic table transition elements placed in separate block.