D block assertion and reason
Understand the Problem
The question is asking for an assertion and reason related to the D block elements, which are transition metals in the periodic table. It likely seeks to explore properties, behaviors, or specific characteristics of these elements.
Answer
d-block metals have high melting and boiling points due to the involvement of (n - 1)d and ns electrons in bonding.
The final answer is that d-block metals have high melting and boiling points because a greater number of electrons from (n - 1)d in addition to ns electrons are involved in the interatomic metallic bonding.
Answer for screen readers
The final answer is that d-block metals have high melting and boiling points because a greater number of electrons from (n - 1)d in addition to ns electrons are involved in the interatomic metallic bonding.
More Information
This unique electron involvement leads to stronger metallic bonds, requiring more energy to break.
Sources
- Infinity Learn - Assertion and Reason - infinitylearn.com
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