* Electronegativity: Silicon has an electronegativity of 1.9, while bromine has an electronegativity of 2.96. The difference in electronegativity (about 1.06) is not large enough to form an ionic bond.

* Sharing of electrons: Covalent bonds involve the sharing of electrons between atoms. Since the difference in electronegativity isn't significant enough to transfer electrons completely, silicon and bromine will share electrons to achieve a stable outer electron shell.

Therefore, the chemical bond formed between silicon and bromine would be a covalent bond, likely resulting in a compound like silicon tetrabromide (SiBr₄).