The ammonium ion has a formula of NH4+ and has a positive charge so it is a cation.
Arnold /ar-nold/ [2 sylls.] as a boys' name is pronounced AR-nold. It is of Old French and Old German origin, and the meaning of Arnold is eagle ruler.From the phrase arn wald. Brought to Britain with the Norman invasion, lost popularity after the 13th century, and briefly revived in the late 19th century.rnold /ar-nold/ [2 sylls.] as a boys' name is pronounced AR-nold. It is of Old French and Old German origin, and the meaning of Arnold is eagle ruler.
The surname Allen has origins in England, France, and Ireland. It was brought to England in the wave of migration after the Norman Conquest in 1066 AD, and is derived from the given name Alan. The name Allen in France belongs to a very particular southern region that was once known as Languedoc. Andâ¦.