EASY
11th CBSE
IMPORTANT
Earn 100
What do you understand by ‘Representative elements'? Name the groups whose elements are called representative elements.
Important Questions on Classification of Elements and Periodicity in Properties
MEDIUM
11th CBSE
IMPORTANT
What are transition elements? Why are they so called? Name the different transition series.
MEDIUM
11th CBSE
IMPORTANT
Which elements are called inner transition elements? Name the different inner transition series. Why are they so named?
HARD
11th CBSE
IMPORTANT
Describe the main characteristics of and -block elements.
MEDIUM
11th CBSE
IMPORTANT
Name different blocks of elements in the periodic table. Give the general electronic configuration of each block.
MEDIUM
11th CBSE
IMPORTANT
Though copper, silver and gold atoms have completely filled sets of -orbitals yet they are called transition metals. Why?
MEDIUM
11th CBSE
IMPORTANT
What do you understand by periodic properties of elements ? Name any three such properties.
HARD
11th CBSE
IMPORTANT
How do atomic sizes vary in a group and in a period? Give reasons for the variations.
HARD
11th CBSE
IMPORTANT
What is meant by atomic and ionic radii? Explain giving reasons why the size of ion is bigger than that of Cl atom whereas size of ion is smaller than that of atom ?
