poloyatomic ion
ions that are made of more than one atom
A polyatomic ion is a molecule that has a net electric charge due to the loss or gain of one or more electrons. These ions are made up of atoms that are covalently bonded, but have an overall charge due to the presence of extra electrons (negative charge) or the loss of electrons (positive charge).
Examples of polyatomic ions include sulfate (SO4^-2), nitrate (NO3^-), ammonium (NH4+), hydroxide (OH^-), and carbonate (CO3^-2). These ions are often found in ionic compounds such as salts, where they combine with oppositely charged ions to form a crystal lattice.
It is important to note that polyatomic ions behave as a single unit when it comes to chemical reactions. For example, when a polyatomic ion reacts with another ion or compound, the entire ion is involved in the reaction, not just certain atoms within the ion. Additionally, the charges of polyatomic ions can be used to determine the formula of ionic compounds.
Overall, a polyatomic ion is an important concept in understanding the behavior of ionic compounds and chemical reactions involving these ions.
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