Câu hỏi
36. What is the difference between ionic and covalent bonds?(HINT: think electrons) 37. What is the difference between polar and nonpolar covalent bonds? 38. How can you determine if a covalent bond is polar or nonpolar?
Giải pháp
4.2
(284 Votes)
Janice Pittman
Master · Tutor for 5 years
Answer
Ionic bonds transfer electrons; covalent bonds share electrons. Polar covalent bonds share electrons unequally; nonpolar covalent bonds share equally. Bond polarity is determined by electronegativity difference.
Explanation
1. Define ionic vs. covalent bonds Ionic bonds involve transfer of electrons; covalent bonds involve sharing of electrons.2. Define polar vs. nonpolar covalent bonds Polar covalent bonds have unequal electron sharing; nonpolar covalent bonds have equal electron sharing.3. Determine bond polarity Compare electronegativities: if difference is significant (
), bond is polar; if small (
), bond is nonpolar.