MEDIUM
11th Odisha Board
IMPORTANT
Earn 100
ion is smaller than ion although both have the same electronic structure. Explain.
Important Questions on Classification of Elements and Periodicity in Properties
MEDIUM
11th Odisha Board
IMPORTANT
Write two characteristics of -block elements.
MEDIUM
11th Odisha Board
IMPORTANT
Name the group of elements classified as , and blocks.
MEDIUM
11th Odisha Board
IMPORTANT
Why ionisation energy of Nitrogen is greater than that of oxygen?
MEDIUM
11th Odisha Board
IMPORTANT
Between and which has higher second ionisation energy and why?
MEDIUM
11th Odisha Board
IMPORTANT
Third period has eight and not eighteen elements. Explain.
MEDIUM
11th Odisha Board
IMPORTANT
Alkali metals do not form dipositive ions, why?
MEDIUM
11th Odisha Board
IMPORTANT
Why first ionisation energy of is more than that of ?
MEDIUM
11th Odisha Board
IMPORTANT
The ionic radii of alkaline earth metals are smaller than those of the nearest alkali metals? Why?
