Which is the correct Lewis structure for acetylene (\(C_ { 2} H_ { 2} \))?

Step 1: 

Count Valence Electrons:
- Carbon (C) has 4 valence electrons.
- Hydrogen (H) has 1 valence electron.
- Total valence electrons: \(2 \times 4\) (for C) + \(2 \times 1\) (for H) = 8 valence electrons.
 
Step 2: 

Arrange Atoms:
- Acetylene is a linear molecule: H-C-C-H.
 

Step 3: 

Form Bonds:
- Each hydrogen forms a single bond with a carbon: H-C and C-H.
- The two carbons form a triple bond to satisfy the octet rule: C≡C.
 
Step 4: 

Verify Electron Count:
- Each single bond (H-C and C-H) uses 2 electrons.
- The triple bond (C≡C) uses 6 electrons.
- Total electrons used: \(2 + 2 + 6 = 10\) (matches the valence electrons).

Supplemental Knowledge:

Lewis structures are diagrams used to represent how molecules bind between their constituent atoms, as well as any free pairs of electrons in that molecule. Acetylene (\(C_ { 2} H_ { 2} \)) is an alkyne with the molecular formula \(C_ { 2} H_ { 2} \), in which each carbon forms triple bonds with every other carbon and one bond each forms with hydrogen; additionally each carbon also bonds directly to one hydrogen.

Real-Life Connections:

Understanding Lewis structures is crucial in various fields.
Imagine you're studying how different molecules interact in biological systems. Knowing how to draw and interpret Lewis structures allows you to predict these interactions more accurately.

To master concepts like drawing Lewis structures or explore other intriguing topics in chemistry, check out UpStudy’s live tutor question bank! Our AI-powered problem-solving services provide detailed explanations and insights across various subjects—helping you enhance your knowledge effortlessly!

Whether you're preparing for exams or simply passionate about learning more about chemical bonding, UpStudy offers comprehensive resources tailored to your educational needs. Discover how UpStudy can support your academic journey today!