[填空题]
Iron (II) oxide,FeO, *; i1wn9wvkyw is one of tzk u 1:0hg4fomhe most abundant compounds in Earth’s crust at nearlymo:04 zghf1uk 9% by mass.
Refer to Sections 9 and 17 of the data booklet for this question.
1.Calculate the electronegativity difference between iron and oxygen in FeO. The mumber= .
2.Use Δx and the average x to identify the bond type that exists between iron and oxygen in FeO.Average electronegativity = .
3.Iron can also exist as a $Fe^{3+}$ion ,resulting in iron (III) oxide when bonded to oxygen. Describe how the bond type differs in FeO compared to $Fe_2O_3$.
