Merits and advantages of modern periodic table?
Answers
Merits are:-
1. The classification of elements is based on the atomic number, which is a more fundamental property.
2. It explains the periodicity of the properties of the elements and relates them to their electronic configurations.
3. The reason for placing isotopes at one place is justified as the classification is on the basis of atomic number.
4. The position of the elements that were misfits on the basis of mass number (anomalous pairs like argon and potassium) could be justified on the basis of atomic number.
5. The lanthanides and actinides are placed separately at the bottom of the
periodic table.
6. The table is simple, systematic and easy way for remembering the properties of various elements as it is based on the electronic configuration.
DEMERITS ARE:-
1.Hydrogen resembles both the alkali metals and halogens. But it has been placed with the alkali.
2.The lanthanides and actinides have not been placed in the main body of the table.
Answer:
ADVANTAGES OF THE PERIODIC TABLE: It is easier to remember the properties of an element if its position in the periodic table is known. The periodic table has made the study of chemistry systematic and easy. ... The type of compounds formed by an element can be predicted by knowing it position in the periodic table.