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 meaning of the name Oliver is Ancestor's Descendant. The origin of the name Oliver is English. This is the culture in which the name originated, or in the case of a word, the language. Oliver is a name with English origins. Contrary to popular belief, Oliver is derived from the old Norse name Ãleifr meaning ancestor's descendant.. It has nothing to do with olives or olive trees. The most common nickname for Oliver is Ollie.