is 226.33 KB, has a resolution of 1252x1252 pixels and was uploaded on February 19, 2019 @ 12:38 am by user: rutheck. It is filed under the tags: liquid, technetium, radionuclide, radiation, natural environment. Click the blue button at the top to freely download: Half Life Strontium-90 Radionuclide Technetium-99 Half-life Radioactive Decay png.