Answer
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Work Step by Step
Bonds can be ionic or covalent depending on the electronegativity difference between the atoms involved. If there is a large electronegativity difference (typically greater than 1.7), one atom will transfer electrons to the other, resulting in ions held together by electrostatic attraction, forming an ionic bond. If there is a relatively small electronegativity difference (typically less than 1.7), atoms will share electrons to achieve a more stable electron configuration, forming a covalent bond.
