State modern periodic law.

State the modern periodic law.

(i) Classify as basic amphoteric or acidic. BeO, Al_(2)O_(3), CaO,SiO_(2) . (ii) State the modern periodic law.

As per the modern periodic law the physical and chemical properties of elements are periodic functions of their

What is the basic difference in approach between the mendeleev's periodic law and the modern periodic law?

Write two drawbacks of the modern periodic table.

In the modern periodic table the coinage metals blong to group-

State the group number in the modern periodic table where solid, liquid and gaseous elements are present at ordinary temperature. Identify the solid and liquid elements.

Which of the following statements related to the modern periodic table is incorrect?

State the group in modern periodic table where solid, liquid and gaseous elements are present at room temperature.