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RESONANCE AND SHAPES

RESONANCE AND SHAPES

Assessment

Flashcard

Chemistry

12th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is resonance in chemistry?

Back

Resonance is a concept used to describe the delocalization of electrons in molecules where the bonding cannot be expressed by a single Lewis structure. It involves multiple structures (resonance structures) that contribute to the overall hybrid structure of the molecule.

2.

FLASHCARD QUESTION

Front

What is the octet rule?

Back

The octet rule states that atoms tend to form bonds in such a way that they have eight electrons in their valence shell, achieving a stable electron configuration similar to that of noble gases.

3.

FLASHCARD QUESTION

Front

Which atom can accommodate an octet of electrons but doesn't necessarily have to?

Back

Boron (B) can accommodate an octet but often forms compounds with fewer than eight electrons.

4.

FLASHCARD QUESTION

Front

What is a valid Lewis structure?

Back

A valid Lewis structure is a diagram that represents the arrangement of electrons in a molecule, showing how atoms are bonded and the distribution of valence electrons.

5.

FLASHCARD QUESTION

Front

What is the significance of lone pairs in Lewis structures?

Back

Lone pairs are pairs of valence electrons that are not involved in bonding. They can influence the shape and reactivity of molecules.

6.

FLASHCARD QUESTION

Front

How many resonance structures can be drawn for the nitrate ion (NO3-)?

Back

Three resonance structures can be drawn for the nitrate ion (NO3-).

7.

FLASHCARD QUESTION

Front

What is the total number of valence electrons in the ion NO-?

Back

The ion NO- has 12 valence electrons.

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