The oxidation of carbon monoxide can be represented by the chemical equation 2CO (g) + O2(g) +2CO2 (g). The table above provides the average bond enthalpies
for different bond types. Based on the information in the table, which of the following
mathematical expressions is correct for the estimated enthalpy change for the reaction?

answersilicon (si); oxygen (o);

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.