The SiBr4 is non polar as the bond it shares it's covalent bond and silicon is more electronegative.
Silicon tetrabromide is a covalent compound with a valuable silicon atom. Silicon itself carries four valence electrons as a primary institution 4A (institution 14) element. It will percentage all of those valence electrons via four single covalent bonds to the four peripheral bromine atoms.
Based on VSEPR theory, a valuable atom with four covalently-related peripheral atoms and 0 non-bonding pairs, outcomes in a tetrahedral molecular geometry. Each Si-Br covalent bond is non polar due to the fact bromine is greater electronegative than silicon. However, the molecule itself isn't always polar, because of the geometry present.
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