Explain with reason:

Electronegativity values of inert gases are zero

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 III

How does the metallic character of elements generally vary in periods and groups of the periodic table?

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 4 - Classification of Elements and Periodicity in Properties>QUESTIONS>Q III

How does ionisation energy vary in a period and in a group? Give reasons.

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 4 - Classification of Elements and Periodicity in Properties>QUESTIONS>Q III

${\mathrm{Mg}}^{2+}$ ion is smaller than ${\mathrm{O}}^{2-}$ ion although both have the same electronic structure. 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

Write two characteristics of $\mathrm{d}$-block 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

Name the group of elements classified as $\mathrm{s}$, $\mathrm{p}$ and $\mathrm{d}$ blocks. 

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 ionisation energy of Nitrogen is greater than that of oxygen? 

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 $\mathrm{Na}$ and $\mathrm{Mg}$ 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.