Olubumbulukuko(Radioactivity)

"Olubumbulukuko"(Radioactivity) luba luyengo(Radiation) oluva mu nzitoya ebumbulukuka nga "yulaniyaamu" oba emibiri gy'ebiramu.Olubumbulukuko lutera kuba:

(a)Luyengo lwa mugendo gwa masannyalaze ne magineeeti(electromagnetic radiation) oluva ku njuba. (b)Luyengo lw'obutunniinyo(obutundutundu obuttini ennyo)=Particle radiation)

Manya: " Oluyengo" = Olubugumu olw'amayengo(Radiation)