1)Compare the electronegativities of metals and non-metals. What patterns do you see? 2) Think about molecules of air.

3. Carbon monoxide is made of one carbon atom and one oxygen atom.

4. What is the electronegativity of oxygen? (1 pt)

5. What is the electronegativity of carbon? (1 pt)

6. Which element (C or O) has a higher electronegativity? (1 pt)

7. Which element (C or O) would have a greater affinity for a new electron? (1 pt)

8. Oxygen is a diatomic molecule. It is made of two oxygen atoms bonded together.

9. How would the electronegativity of the two oxygen atoms compare?

10. Which molecule (CO or O2) does hemoglobin bind to preferentially? (1 pt) propose a theory about why hemoglobin binds more strongly to carbon monoxide than oxygen.