MEDIUM
11th Odisha Board
IMPORTANT
Earn 100

Why ionisation energy of Nitrogen is greater than that of oxygen? 

Important Questions on Classification of Elements and Periodicity in Properties

MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 4 - Classification of Elements and Periodicity in Properties>QUESTIONS>Q IV
Between Na and Mg which has higher second ionisation energy and why? 
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 4 - Classification of Elements and Periodicity in Properties>QUESTIONS>Q IV
Third period has eight and not eighteen elements. Explain. 
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 4 - Classification of Elements and Periodicity in Properties>QUESTIONS>Q IV
Alkali metals do not form dipositive ions, why? 
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 4 - Classification of Elements and Periodicity in Properties>QUESTIONS>Q IV
Why first ionisation energy of Mg is more than that of Al? 
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 4 - Classification of Elements and Periodicity in Properties>QUESTIONS>Q IV
The ionic radii of alkaline earth metals are smaller than those of the nearest alkali metals? Why? 
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 4 - Classification of Elements and Periodicity in Properties>QUESTIONS>Q IV
Give four characteristic properties of group 14 elements.
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 4 - Classification of Elements and Periodicity in Properties>QUESTIONS>Q IV
Justify the position of carbon and lead in the periodic table on the basis of electronic configuration.
HARD
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 4 - Classification of Elements and Periodicity in Properties>QUESTIONS>Q V
Describe the long form of periodic table. What advantages it has over the Mendeleev's periodic table?