Editing Specific activity (section)

==Examples==
{| class="wikitable"
!Isotope
!Half-life
!Mass of 1 curie
!Specific Activity (a) (activity per 1&nbsp;kg)
|-
| [[thorium-232|<sup>232</sup>Th]] || {{val|1.405|e=10}} years|| 9.1 tonnes || 4.07 MBq (110 μCi or 4.07 Rd)
|-
| [[uranium-238|<sup>238</sup>U]] ||{{val|4.471|e=9}} years|| 2.977 tonnes|| 12.58 MBq (340 μCi, or 12.58 Rd)
|-
| [[uranium-235|<sup>235</sup>U]] ||{{val|7.038|e=8}} years|| 463&nbsp;kg || 79.92 MBq (2.160 mCi, or 79.92 Rd)
|-
| [[potassium-40|<sup>40</sup>K]] ||{{val|1.25|e=9}} years||140&nbsp;kg || 262.7 MBq (7.1 mCi, or 262.7 Rd)
|-
| [[iodine-129|<sup>129</sup>I]] ||{{val|15.7|e=6}} years||5.66&nbsp;kg || 6.66 GBq (180 mCi, or 6.66 kRd)
|-
| [[technetium-99|<sup>99</sup>Tc]] ||{{val|211|e=3}} years||58 g || 629 GBq (17 Ci, or 629 kRd)
|-
| [[plutonium-239|<sup>239</sup>Pu]] ||{{val|24.11|e=3}} years||16 g|| 2.331 TBq (63 Ci, or 2.331 MRd)
|-
| [[plutonium-240|<sup>240</sup>Pu]] || 6563 years || 4.4 g || 8.51 TBq (230 Ci, or 8.51MRd)
|-
| [[carbon-14|<sup>14</sup>C]] ||5730 years||0.22 g || 166.5 TBq (4.5 kCi, or 166.5 MRd)
|-
| [[radium-226|<sup>226</sup>Ra]] || 1601 years || 1.01 g || 36.63 TBq (990 Ci, or 36.63 MRd)
|-
| [[americium-241|<sup>241</sup>Am]] || 432.6 years || 0.29 g || 126.91 TBq (3.43 kCi, or 126.91 MRd)
|-
| [[plutonium-238|<sup>238</sup>Pu]] || 88 years || 59&nbsp;mg || 629 TBq (17 kCi, or 629 MRd)
|-
| [[caesium-137|<sup>137</sup>Cs]] || 30.17 years || 12&nbsp;mg || 3.071 PBq (83 kCi, or 3.071 GRd)
|-
| [[strontium-90|<sup>90</sup>Sr]] || 28.8 years || 7.2&nbsp;mg || 5.143 PBq (139 kCi, or 5.143 GRd)
|-
| [[plutonium-241|<sup>241</sup>Pu]] || 14 years || 9.4&nbsp;mg || 3.922 PBq (106 kCi, or 3.922 GRd)
|-
| [[tritium|<sup>3</sup>H]] || 12.32 years || 104 μg || 355.977 PBq (9.621 MCi, or 355.977 GRd)
|-
| [[radium-228|<sup>228</sup>Ra]] ||5.75 years||3.67&nbsp;mg || 10.101 PBq (273 kCi, or 10.101 GRd)
|-
| [[cobalt-60|<sup>60</sup>Co]] ||1925 days||883 μg || 41.884 PBq (1.132 MCi, or 41.884 GRd)
|-
| [[polonium-210|<sup>210</sup>Po]] ||138 days||223 μg || 165.908 PBq (4.484 MCi, or 165.908 GRd)
|-
| [[iodine-131|<sup>131</sup>I]] ||8.02 days||8 μg || 4.625 EBq (125 MCi, or 4.625 TRd)
|-
| [[iodine-123|<sup>123</sup>I]] ||13 hours||518&nbsp;ng || 71.41 EBq (1.93 GCi, or 71.41 TRd)
|-
| [[lead-212|<sup>212</sup>Pb]] ||10.64 hours||719&nbsp;ng || 51.43 EBq (1.39 GCi, or 51.43 TRd)
|}