Chemistry

Question Analysis
This question evaluates the student's understanding of the definition of electronegativity and its role in determining the type of chemical bond.

Key Concept Explanation
Electronegativity is a measure of an atom's ability to attract shared electrons in a chemical bond. The difference in electronegativity (ΔEN) between two elements helps predict the type of bond they will form. A large ΔEN (greater than 1.7) indicates an ionic bond, while a small ΔEN (0–0.4) indicates a nonpolar covalent bond, and a moderate ΔEN (0.4–1.7) indicates a polar covalent bond.

Step-by-step Solution
1. Define electronegativity as the relative ability of an atom to attract shared electrons.
2. Explain that the difference in electronegativity (ΔEN) between two elements determines the type of bond they form.
3. State the criteria for each type of bond: ionic (ΔEN > 1.7),...