Write a short note on Mendeleev’s periodic law.
Important Questions on Periodic Classification of Elements
Write a short note on the structure of the modern periodic table.
Write a short note on the position of isotopes in the Mendeleev’s and the modern periodic table.
Write the scientific reason for the atomic radius goes on decreasing while going from left to right in a period.
Write the scientific reason for metallic character goes on decreasing while going from left to right in a period.
Write the scientific reason for elements belonging to the same group has the same valency.
Write the names from the description.
The period with electrons in the shells K, L and M.
Write the names from the description.
The group with valency zero.
Write the names from the description.
The family of nonmetals having valency one.
