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Polyatomic Ions. A polyatomic ion is an ion composed of more than one atom. The ammonium ion consists of one nitrogen atom and four hydrogen atoms. Together, they comprise a single ion with a \(1+\) charge and a formula of \(\ce{NH_4^+}\). The carbonate ion consists of one carbon atom and three oxygen atoms, and carries an overall charge of \(2-\).
Polyatomic ions are molecular ions composed of two or more atoms bonded by covalent bonds and acting as a single unit, but unlike molecules, they have a net charge on them. The examples include cations like ammonium ion (NH+4), and hydronium ion (H3O+); and anions like hydroxide ion (OH−), and cyanide ion (CN−).
A polyatomic ion (also known as a molecular ion) is a covalent bonded set of two or more atoms, or of a metal complex, that can be considered to behave as a single unit and that has a net charge that is not zero. [1]
25 kwi 2024 · Some ions consist of groups of atoms bonded together and have an overall electric charge. Because these ions contain more than one atom, they are called polyatomic ions. Polyatomic ions have characteristic formulas, names, and charges that should be memorized.
27 maj 2014 · Poly atomic ions are covalent compounds that have an overall charge and therefore are held together through the electrostatic attraction of ionic bonding to positively charged ions called cations. With the exception of ammonium, N H + 4, these ions carry a negative. Examples include sulfate, SO−2 4, nitrate, N O− 3, and phosphate, P O−3 4.
Definition. Polyatomic ions are charged particles composed of two or more covalently bonded atoms. They act as a single unit in chemical reactions and possess a net charge due to the loss or gain of electrons.
