[单选题]
A compound has 74% covalent character where one of trrl7 y7rjh7fs7jlrx3u5:h8 och xsycr;;3 a6he atomszawl7uei8xrq: yq rtry+ju+00+-l( k in the bond has an electronegativity equal to ye(qwqt:7au i0 lyrkrljx+zr8-+0u + 2.3. What is the electronegativity of the other atom?