Fifty years earlier, Peter—then a high-school kid from Forest Hills, Queens—was bitten by a radioactive spider.
They dropped used syringes in an empty soda can: the radioactive Coke Can.
A decade ago a rash of radioactive tumbleweeds blew across the nearby plains.
The nuclear rocket reactor first ejected large chunks of its radioactive fuel out into the open air.
Long hallways with mysteriously closed-off sections marked by signs that said “Caution: radioactive Activity.”
But far more penetrating than x-rays are the y-rays emitted in certain of the radioactive changes.
"Eighty-five isn't nearly as radioactive as the elements akin to it," he said.
Such as the numbers of particles that would be given off by a lump of radioactive matter during a short period.
Of some 340 kinds of atoms that have been found in nature, about 70 are radioactive.
Bomb and rocket and flimsy metal foil turned together to radioactive metal vapor.
radioactive ra·di·o·ac·tive (rā'dē-ō-āk'tĭv)
Of or exhibiting radioactivity.