Dictionary of Chemistry [6th Ed.]

bers 78, 80, 82, 83, 84) and there are

Üve radioactive isotopes (76, 77, 79,

81, 85). Krypton–85 (half-life 10.76

years) is produced inÜssion reactors

and it has been suggested that an

equilibrium amount will eventually

occur in the atmosphere. The el-

ement is practically inert and forms

very few compounds (certain

Ûuorides, such as KrF 2 , have been re-

ported).

A

• Information from the WebElements site

Kupfer nickelA naturally occur-

ring form of nickel arsenide, NiAs; an

important ore of nickel.

kurchatovium See transactinide

elements.

Kupfer nickel 310

k