* Electronegativity: Carbon has an electronegativity of 2.55, while Bromine has an electronegativity of 2.96. The difference in electronegativity (0.41) is not large enough to classify the bond as ionic. Ionic bonds typically form when the electronegativity difference is greater than 1.7.
* Sharing of Electrons: In a covalent bond, atoms share electrons to achieve a stable electron configuration. Carbon needs four more electrons to fill its outer shell, and Bromine needs one more. They form a single covalent bond, where Carbon shares one electron with Bromine, and Bromine shares one electron with Carbon.
In summary: The bond between Carbon and Bromine is covalent because they share electrons to achieve stability, and the electronegativity difference is not significant enough to form an ionic bond.
