The average number of neutrons released per nucleus that go on to fission another nucleus is referred to as k. Values of k larger than 1 mean that the fission reaction is releasing more neutrons than it absorbs, and therefore is referred to as a self-sustaining chain reaction.
Iddukud wan ammas n neutrons zajar nen nucleus iyyan tajjach nen fision n nucleus wa yadan itwan has K. Values n K ojjaran 1 n metir fission reaction wen zajaran ti neutron tan ajjotnen ojjar nen wi isas tolas itwan ha chain reaction wa s igdahan iman net