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W2-Lewis Structures

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Questions and Answers

Which molecule exhibits an exception to the octet rule?

$CHBr_3$

$SF_4$

$CO_2$

$NO$ (correct)

What is the total number of valence electrons in bromoform (CHBr3)?

26 (correct)

Which molecule has more than an octet for one of its atoms?

$CHBr_3$

$NO_2$

$CO_2$

$SF_4$ (correct)

What type of molecules are exceptions to the octet rule?

Molecules with an odd number of electrons and those in which an atom has less than an octet. Signup and view all the answers

What is the formula for calculating formal charges in a Lewis structure?

Number of valence electrons minus number of electrons assigned to the atom Signup and view all the answers

In the Lewis structure of NO+, how many valence electrons are there?

10 Signup and view all the answers

Which atom is preferred to have a positive formal charge in a Lewis structure?

The least electronegative atom Signup and view all the answers

What does resonance refer to in the context of Lewis structures?

Redistribution of valence electrons Signup and view all the answers

What is a radical or free radical in chemistry?

$O_2$ molecule with unpaired electrons Signup and view all the answers

W2-Lewis Structures

Choose a study mode

Podcast

Questions and Answers

Which molecule exhibits an exception to the octet rule?

What is the total number of valence electrons in bromoform (CHBr3)?

Which molecule has more than an octet for one of its atoms?

What type of molecules are exceptions to the octet rule?

What is the formula for calculating formal charges in a Lewis structure?

In the Lewis structure of NO+, how many valence electrons are there?

Which atom is preferred to have a positive formal charge in a Lewis structure?

What does resonance refer to in the context of Lewis structures?

What is a radical or free radical in chemistry?

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