5. when the statue of liberty was built in 1886, the air was rich with sulfur, a byproduct of coal mining…

5. when the statue of liberty was built in 1886, the air was rich with sulfur, a byproduct of coal mining. copper forms a compound with sulfate ions in the air, cus. compounds containing both copper and sulfur can be brown, black, or blue. using your understanding of electronegativity, make a prediction: is copper more likely to react with oxygen to form cuo or with sulfur to form cus? note: when copper forms an ionic bond with oxygen or sulfur, the oxygen or sulfur atom \steals\ electrons from the copper atom.
Answer
Explanation:
Step1: Recall Electronegativity
Electronegativity is the ability of an atom to attract electrons. Higher electronegativity means a stronger pull on electrons. Oxygen has an electronegativity of ~3.44, sulfur has ~2.58.
Step2: Relate to Bonding
In ionic bonding, the more electronegative atom "steals" electrons. Since O is more electronegative than S, it has a stronger pull on Cu's electrons.
Step3: Predict Reaction Likelihood
A stronger electronegative atom (O) will more strongly attract Cu's electrons, making the ionic bond formation (CuO) more favorable than with S (CuS), as S has lower electronegativity and weaker electron attraction.
Answer:
Copper is more likely to react with oxygen to form CuO.