Water is a compound or a molecule made by covalent bondings.
These bonds tend to be ionic. However, all bonds are somewhere between purely ionic and purely covalent.
Metals forms ionic bonds.
Ionic bonds are formed between a metal and a nonmetal.
Rubidium by itself is neither ionic nor covalent. When it forms bonds with other elements, it forms ionic bonds.
The elements that generally form ionic bonds are the metals and nonmetals.
The elements are sodium, Na, and chlorine, Cl. The bond is ionic. The ionic formula is Na+ Cl-
There are no two chemical elements that are alwaysinvolved in forming ionic bonds. If the questioner meant something else, a rephrasing of the question is needed.
No, ionic bonds are formed between atoms of different elements that have significantly different electronegativities. Identical atoms have the same electronegativities, so they do not form ionic bonds.
Elements form bonds because of the attractions between atoms or ions. There are several types of bonds such as ionic, covalent and metallic bonds.
Elements and compounds can form ionic bonds, covalent bonds, or metallic bonds. In ionic bonds, electrons are transferred from one atom to another. Covalent bonds involve the sharing of electrons between atoms. Metallic bonds occur in metals where electrons are free to move between atoms.
Elements with electrons that are not tightly held are more likely to form ionic bonds because they have a tendency to lose or gain electrons to achieve a stable electron configuration. This typically occurs in elements with large differences in electronegativity, leading to the transfer of electrons and the formation of ionic compounds. Bonds between such elements are typically less likely to form covalent bonds.
Elements that form ionic bonds have a large difference in electronegativity. Typically, metals and nonmetals will form ionic bonds when combined together. In these bonds, the metal atom loses electrons to form a cation, while the nonmetal atom gains electrons to form an anion.