MEDIUM
11th CBSE
IMPORTANT
Earn 100
Account for the fact that period of the periodic table has eighteen and not eight elements.
Important Questions on Classification of Elements and Periodicity in Properties
HARD
11th CBSE
IMPORTANT
Elements and have atomic numbers and respectively. On the basis of electronic configuration write to which group of the periodic table each element belongs?
HARD
11th CBSE
IMPORTANT
Name the four blocks into which the elements of the periodic table have been classified. Why are they named so? List the groups of periodic table belonging to each block.
EASY
11th CBSE
IMPORTANT
What do you understand by ‘Representative elements'? Name the groups whose elements are called representative elements.
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?
