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.
Oliver /oliv-er/ [3 sylls.] as a boys' name is pronounced AH-lih-ver. It is of Latin origin, and the meaning of Oliver is olive tree.Name of one of Charlemagne's knights in the 12th-century poem Chanson de Roland. Also possibly from Alfihar (Old German) host of elves or Olafr (Old Norse) ancestor.Biblical: the olive tree is a symbol of fruitfulness, beauty, and dignity.liver is a very prominent first name for males (#319 out of 1220, Top 26%) and also a very prominent last name for all people (#248 out of 150436, Top 1%). (2000 U.S. Census). Displayed below is the baby name popularity of Oliver for boys. Oliver reached its peak rank of #32 in the U.S. in 2014.