The questions on page 22 focus on understanding , covalent bonds , and the unique ability of carbon atoms to form chains—the foundation of organic chemistry. 🧪 Exercise Solutions: Page 22 Question 1: What is a Chemical Bond?
Carbon is unique because it sits in the middle of the second period (Group 14). It has 4 electrons in its outer shell. Stability: C-C bonds are very strong and stable.
Carbon atoms can link together in straight chains, branched chains, or rings. Question 3: Electronic Configuration of Carbon
This allows carbon to form 4 covalent bonds in organic compounds (tetravalency). 💡 Key Study Tips
Use the online version of the textbook to review the diagrams of methane ( CH4cap C cap H sub 4 ) and ethane ( C2H6cap C sub 2 cap H sub 6 ) usually found near these exercises.
This exercise appears at the end of (or similar introductory chapters on structure) in the 10th-grade Organic Chemistry textbook by G.E. Rudzitis and F.G. Feldman.
To understand the bonding, look at the ground state vs. the excited state: 1s22s22p21 s squared 2 s squared 2 p squared (2 unpaired electrons). Excited State ( C*cap C raised to the * power ): 1s22s12p31 s squared 2 s to the first power 2 p cubed (4 unpaired electrons).
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