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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?

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136.

Calculate the formal chrage on each O-atom of O₃ molecule.

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137.
What is the importance of calculating the formal charges?

The main advantage of calculation of formal charges is that it helps to select the lowest energy structure (i.e. most stable structure) from a number of possible Lewis structures for a given species. The most stable are the one which has the smallest formal charges on the atoms.

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