A polyatomic ion, also known as a molecular ion, is a charged chemical species (ion) composed of two or more atoms covalently bonded or of a metal complex that can be considered to be acting as a single unit. The prefix poly-means many, in Greek, but even ions of two atoms are commonly referred to as polyatomic.ts chemical formula is O H â . An ammonium ion is made up of one nitrogen atom and four hydrogen atoms: it has a charge of +1, and its chemical formula is N H 4 + . Polyatomic ions are often useful in the context of acid-base chemistry or in the formation of salts.
Cardholder data is any personally identifiable data associated with a cardholder. This could be an account number, expiration date, name, address, social security number, etc. The account number is the critical component that makes the PCI Data Security Standards applicable.
and Passport Cards to. and nationals. The. Card is a wallet-size card that can be used only for land and sea travel between the United States and Canada, Mexico, the Caribbean and Bermuda. Enter the U.S. Passport or Passport Card number exactly as it appears on the document. The number must be between six and nine alphanumeric characters (letters and numbers). You may not enter any special characters.