CBSENEETJEEClass 10
What was Mendeleev's periodic table based on?
Answer
Mendeleev's periodic table was based on the increasing atomic masses of elements and the similarity in their physical and chemical properties.
The working
Main basis
Mendeleev arranged the known elements in order of their increasing atomic masses.
Periodic law
He stated that the properties of elements are a periodic function of their atomic masses.
Grouping
Elements with similar properties were placed together in the same vertical column or group.
Special feature
He left gaps for undiscovered elements and predicted their properties, which were later confirmed.
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