what is an example of a polyatomic ion
Polyatomic ion An example of a polyatomic ion is the hydroxide ion; consisting of one oxygen atom and one hydrogen atom, hydroxide has a charge of −1. Its chemical formula is OH−. An ammonium ion is made up of one nitrogen atom and four hydrogen atoms: it has a charge of +1, and its chemical formula is NH+4.
Isotope Isotopes are atoms of the same element having the same numbers of protons (atomic number), but different numbers of neutrons. They have same chemical properties due to the same electron configuration, but different physical properties.[citation needed]
Acid–base reaction For example, a BrÃ¸nsted-Lowry model for the dissociation of hydrochloric acid (HCl) in aqueous solution would be the following:
Hermitian matrix The diagonal elements must be real, as they must be their own complex conjugate.