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.
Arnold Schwarzenegger was born on the 30th of July 1947 in Thal, Austria, a small town 4 miles from Graz. Arnold grew up in the household with his father Gustav Schwarzenegger who was the local police chief, his mother Aurelia Jadrny and his older brother Meinhard.