Metals form generally forms ionic bonds as in salts.
Carbon form covalent bonds, for ex.
Iron is not a compound, it is a metallic element.
Phosphorus is a chemical element, not a compound.
Ca (calcium) is an element, not a compound. and it can only form ionic compounds.
Silicon tetrafluoride is a covalent molecular compound, not an ionic compound. It consists of silicon and fluorine atoms that are held together by covalent bonds, where they share electrons to form stable molecules.
Xe is an inert element that can't be combined in a chemical compound to form neither ionic or covalent bond.
The compound P2O5 contains both ionic and covalent bonds. The phosphorus-oxygen bonds are covalent, as they involve the sharing of electrons, while the overall structure involves ionic bonding between the phosphorus atoms and oxygen atoms.
Neither; it is an elemental metal and not a compound at all.
Covalent
Yes, they are covalent liquid, an ionic compound is always solid.
No, F2 is covalent but it is an element, not a compound.
Formula unit
Chlorine oxide would be a covalent compound, and not an ionic compound.