Which type of chemical bond is formed when two atoms share valence electrons equally due to identical or negligible electronegativity difference?
Answer and explanation
Correct answer: A. Nonpolar covalent bond
- Step 1: A nonpolar covalent bond forms when two nonmetal atoms have an electronegativity difference less than 0.4-0.5, resulting in equal sharing of the electron pair (e.g., ).
Answer
Nonpolar covalent bond.
Why not the others: 'Ionic bond' involves complete transfer of electrons between atoms with large electronegativity differences (> 1.7-2.0); 'Polar covalent bond' involves unequal electron sharing; 'Hydrogen bond' is an intermolecular dipole-dipole attraction.
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