A hydrogen ion is created when a hydrogen atom loses an electron. A positively charged hydrogen ion (or proton) can readily combine with other particles...

solutions. Acidic solutions (solutions with higher concentrations of hydrogen (H+) ions) are measured to have lower pH values than basic or alkaline solutions...

The hydrogen anion, H−, is a negative ion of hydrogen, that is, a hydrogen atom that has captured an extra electron. The hydrogen anion is an important...

needed] A simple example of a polyatomic ion is the hydroxide ion, which consists of one oxygen atom and one hydrogen atom, jointly carrying a net charge of...

arrangement, with a hydrogen atom attached to one of the oxygens. It is isoelectronic with nitric acid HNO 3. The bicarbonate ion carries a negative one...

(H+) to a base—in other words, it is a base with a hydrogen ion added to it, as it loses a hydrogen ion in the reverse reaction. On the other hand, a conjugate...

cation or hydrogen molecular ion is a cation (positive ion) with formula H 2 + {\displaystyle {\ce {H2^+}}} . It consists of two hydrogen nuclei (protons)...

An acid is a molecule or ion capable of either donating a proton (i.e. hydrogen ion, H+), known as a Brønsted–Lowry acid, or forming a covalent bond with...

as Arrhenius acid molecules in solution give up a proton (a positive hydrogen ion, H+) to the surrounding water molecules (H2O). In fact, acids must be...

atom bonded to a hydrogen atom, with one electron removed. It can also be viewed as protonated helium. It is the lightest heteronuclear ion, and is believed...

1H+. On the other hand, calling the hydron simply hydrogen ion is not recommended because hydrogen anions also exist. The term "hydron" was defined by...

A hydrogen atom is an atom of the chemical element hydrogen. The electrically neutral hydrogen atom contains a single positively charged proton in the...

A hydrogen molecular ion cluster or hydrogen cluster ion is a positively charged cluster of hydrogen molecules. The hydrogen molecular ion (H+ 2) and trihydrogen...

Polyatomic ions containing oxygen, such as carbonate and sulfate, are called oxyanions. Molecular ions that contain at least one carbon to hydrogen bond are...

Laboratory he studied the effect of ion concentration on proteins and, because the concentration of hydrogen ions was particularly important, he introduced...

Ion semiconductor sequencing is a method of DNA sequencing based on the detection of hydrogen ions that are released during the polymerization of DNA....

hydrogen ions (H+) are added, and the equilibrium is shifted to the left, in accordance with Le Chatelier's principle. Because of this, the hydrogen ion...

substance that ionises in water to form hydrogen ions (H+); that is, an acid increases the concentration of H+ ions in an aqueous solution. This causes the...

solution both hydrogen and hydroxide ions are strongly solvated, with hydrogen bonds between oxygen and hydrogen atoms. Indeed, the bihydroxide ion H 3O− 2...

that dissociates into A−, called the conjugate base of the acid, and a hydrogen ion, H+. The system is said to be in equilibrium when the concentrations...

Sørensen's 1909 introduction of the pH scale with a study of the effect of hydrogen ion concentration on invertase, and he became the leading world expert on...

of hydrogen Hydrogen atom, about the physics of atomic hydrogen Hydrogen ion Hydron (chemistry), a.k.a. "proton" or "hydrogen" Isotopes of hydrogen Hydrogen-2...

A pH meter is a scientific instrument that measures the hydrogen-ion activity in water-based solutions, indicating its acidity or alkalinity expressed...

dissociates in aqueous solution to form hydroxide ions OH−. These ions can react with hydrogen ions (H+ according to Arrhenius) from the dissociation...

modified form of ammonia that has an extra hydrogen atom. It is a positively charged (cationic) molecular ion with the chemical formula NH+4 or [NH4]+....

of hydrogen are maintained at unity. That implies that the pressure of hydrogen gas is 1 bar (100 kPa) and the activity coefficient of hydrogen ions in...

phosphate ion [H 2PO 4]− while removal of two protons gives the hydrogen phosphate ion [HPO 4]2− . These names are also used for salts of those anions...

water into oxygen (O 2) and hydrogen (H 2) gas by electrolysis. Hydrogen gas released in this way can be used as hydrogen fuel, but must be kept apart...

process producing hydrogen ions and increasing their concentration in blood or body fluids. pH is the negative log of hydrogen ion concentration and so...

sometimes called dihydrogen, but more commonly called hydrogen gas, molecular hydrogen or simply hydrogen. It is colorless, odorless, non-toxic, and highly...