
Ammonium - Wikipedia
Ammonium is a 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]+. It is formed by …
Ammonium (NH4+): Definition, Formula, Structure, and Compounds
What is an ammonium ion. Learn its symbol, charge, preparation, and reactions. Explore a few examples of ammonium compounds along with their uses.
AMMONIUM Definition & Meaning - Merriam-Webster
The meaning of AMMONIUM is an ion NH4+ derived from ammonia by combination with a hydrogen ion and known in compounds (such as salts) that resemble in properties the …
Ammonium Definition - Intro to Chemistry Key Term | Fiveable
Ammonium is a positively charged ion with the chemical formula NH4+. It is a key component in various chemical processes, including the formation of buffers, which help maintain a stable …
AMMONIUM | definition in the Cambridge English Dictionary
AMMONIUM meaning: 1. a type of ion that is derived from ammonia and is contained in chemical compounds of it: 2. a…. Learn more.
ammonium noun - Definition, pictures, pronunciation and usage …
Definition of ammonium noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
Ammonium - wikidoc
The ammonium cation is a positively charged polyatomic cation of the chemical formula NH 4+. It has a molecular mass of 18.04 and is formed by protonation of ammonia (NH 3). The resulting …
Ammonium ion | chemical ion | Britannica
The ammonium ions are usually converted to nitrite ions (NO 2−) by Nitrosomonas bacteria, followed by a second conversion to nitrate (NO 3−) by Nitrobacter bacteria.
Ammonium - Simple English Wikipedia, the free encyclopedia
Ammonium ... Ammonium is an ion. It is an ammonia molecule, NH 3, protonated (with a hydrogen ion added) to make NH 4+. It bonds with negative ions such as chloride to make …
Ammonia or Ammonium? What’s the difference? - USGS.gov
Mar 7, 2025 · In water, ammonia (NH 3) and ammonium (NH 4+) exist together in an equilibrium that depends on pH and temperature. As the temperature or pH rise, ammonia (NH 3) …