Question

Fundamentals of Chemistry 1407-010 Fall 2019a <Chapter 10 Exercise 10.11 Why does the octet rule have exceptions? List some examples Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer Reset Help boron The exceptions to the octet rule may refer to compounds that have numbers of valence electrons. For example, compounds tend to form with only valence electrons, and some compounds that have more than valence electrons. carbon Submit Request Answer

Answer 1

Boron has electronic configuration 1s²2s²2p¹ , number of valence shell electrons are 3. Boron forms many trivalent compounds like BF₃, BCl₃ etc and has incomplete octets .

Answer:

The exceptions to the octet rule may refer to compounds that have odd number of valence electrons . For example, boron compounds tend to form with only 6 valence electrons and some compounds that have more than 6 valence electrons .