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The bonding in a bar of pure iron is generally called "metallic", which is distinguished from an ionic bond by the lack of any anions and is distinguished from other covalent bonds by the extreme extent of delocalization of the electrons.
The bond is ionic.
No, iron and oxygen typically do not form a covalent bond. Instead, they usually form an ionic bond in compounds such as iron oxide (Fe2O3) or iron(II) oxide (FeO).
Iron and oxygen can form ionic bonds when iron loses electrons to oxygen, or they can form covalent bonds when they share electrons. Additionally, iron oxide can form a mixture of ionic and covalent bonding depending on the specific conditions.
Ionic
its ionic, as iron is positively charged metal and sulfate is a negatively charged nonmetal.
Iron and oxygen will form an ionic bond, specifically iron oxide (Fe2O3), where iron will donate electrons to oxygen to form positively and negatively charged ions that attract each other.
It is an ionic compound.
Iron and chromium can form metallic bonds when they are alloyed together. Metallic bonds are characterized by the sharing of electrons between atoms, which allows the metals to conduct electricity well.
It is ionic
First of all Fe is Iron, and a sample of Iron would just be pure Iron thus there wouldn't be any "bonds" Second of all Fe is a metal thus cannot have a covalent bond. If it bonds, it is usually an ionic bond with non-metal i.e. Oxygen to make rust
No they have a covalent bond due to because of their electronegativities.