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Chemical Bonding and Molecular Structure

Short Answer Type

131.

An element A has the configuration 1s²2s²2p⁶3s¹ while the configuration of B is 1s²2s²2p⁵. What type of bond is likely to be formed between them?

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Long Answer Type

132.

Discuss the Lewis concept of the covalent bond formation.

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133.

Write the Lewis dot structure of molecule.

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134. Write the Lewis structure of nitrite

space space NO subscript 2 superscript minus

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Short Answer Type

135.
What do you understand by formal charge (F.C.) on atom in a molecule/ion?

The formal charge of an atom in a polyatomic molecule or ion may be defined as the difference between the number of valence electrons of that atom in an isolated or free state and the number of electrons assigned to that atom in the Lewis structure.

It is expressed as:

[Formal charge (F.C.) on an atom in a molecule/ion]
= [Total number of valence electrons in the free atom] - [Total number of non-bonding (lonepair) electrons]
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