Nuclide Library
Name /
Shortname
Half-Life Usage / Remarks
Radium
1600a
Naturally occurring radioactive material
A decay product of uranium and thorium, it occurs in virtually all rock,
soil, and water in low concentrations. 20 % of the
226
Ra that is inges-
ted via food and water is deposited into the bone. Although this makes
the nuclide dangerous itself, it presents its greatest risk when it decays
into
222
Ra, which is an odorless, tasteless, radioactive gas that can be
inhaled into the lungs.
Nuclide Library(continued)
identiFINDER® R200— ENGLISH (en) — 3/10/2017—1:38 PM 9 - 117
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