Elements from the Right Hand Side of the Periodic Table especially from the halogens and the oxygen groups form negative ions in ionic compounds.
The element that forms the cation (positive ion) comes first in the formula for an ionic compound.
An element that forms an ionic compound when it reacts with lithium is fluorine. Fluorine gains an electron to form the F^- ion, which then attracts the Li^+ ion from lithium to form the ionic compound lithium fluoride (LiF).
Bromine (Br) All nonmetals except the noble gasses will react with lithium to form ionic compounds.
HgBr is an ionic compound. Mercury (Hg) is a metal element that forms cations, while bromine (Br) is a non-metal element that forms anions. In an ionic compound like HgBr, the metal cation is positively charged and the non-metal anion is negatively charged, leading to electrostatic attraction between them.
Neither, because silicon is an element, not a compound.
When a metal and nonmetal element form an ionic compound, it is a transfer of electrons from the metal (which loses electrons to become a cation) to the nonmetal (which gains electrons to become an anion). This forms an ionic bond between the cation and anion, resulting in the formation of an ionic compound.
Zinc carbonate is an ionic compound with the formula ZnCO3.
Metals form generally forms ionic bonds as in salts.Carbon form covalent bonds, for ex.
An element like sodium or potassium would form an ionic compound when combined with fluorine. Fluorine is a highly electronegative element that readily accepts electrons to form a negative ion, while elements like sodium and potassium are more likely to lose electrons to form positive ions, resulting in the formation of an ionic compound.
A single element cation and single element anion form a binary ionic compound, where one element is a metal and the other is a nonmetal. The metal forms the cation by losing electrons, while the nonmetal forms the anion by gaining electrons. Examples include NaCl (sodium chloride) and KBr (potassium bromide).
Sulfer is an element, only compounds can be ionic. For example, NaCl is an ionic compound- something that has a metal and a non-metal.
The material you are referring to is called a zwitterionic material, or on ocassion and amphoteric laterial. These materials carry both a positive and negative point charge on the same molecule.