Question

krypton is one of the rarest gases found in earths atmosphere. the chemical formula for krypton is kr. complete the statement. krypton is _. an elementary substance a compound

Explanation:

An elementary substance (element) is a pure substance that cannot be broken down into simpler substances by chemical means. A compound is a pure substance formed by the chemical combination of two or more different elements. Krypton has the chemical formula \(Kr\), which indicates it consists of only one type of atom (krypton atoms). So it meets the definition of an elementary substance.

Answer:

an elementary substance