Ammonium cation: The cation of molecular formula NH 4 + (i.e., the conjugate acid of ammonia). Can also refer to any cation in which nitrogen has four single bonds and a positive formal charge, such as the tetra methyl ammonium cation.
Arden /ar-den/ [2 sylls.] as a girls' name (also used as boys' name Arden) is pronounced AR-den. It is of Latin origin, and the meaning of Arden is great forest. Literary: the Forest of Arden in Shakespeare's As You Like It was a magically beautiful place.
The region sits just above Ãle-Ã®le-De france and Touches belgium to the-north, east Between-nord-pas-De calais and its eastern, Neighbour-Champagne. Ardenneâpicardie s location means that it is within anâhour s reach Of, London paris And. brussels