| Element | isotope | old name
|
|---|
| uranium | 238U | uranium
|
| 234U | uranium-II
|
| protactinium | 234Pa | uranium-X2, brevium
|
| thorium | 234Th | uranium-X1
|
| 232Th | thorium
|
| 230Th | ionium
|
| 228Th | radiothorium
|
| 227Th | radioactinium
|
| actinium | 228Ac | mesothorium-II
|
| 227Ac | actinium
|
| radium | 228Ra | mesothorium-I
|
| 226Ra | radium
|
| 224Ra | thorium-X
|
| 223Ra | actinium-X
|
| radon | 222Rn | radium emanation, radon, niton
|
| 220Rn | thorium emanation, thoron
|
| 219Rn | actinium emanation, actinon
|
| polonium | 218Po | radium-A
|
| 216Po | thorium-A
|
| 215Po | actinium-A
|
| 214Po | radium-C'
|
| 212Po | thorium-C'
|
| 210Po | radium-F, radiotellurium
|
| bismuth | 214Bi | radium-C
|
| 212Bi | thorium-C
|
| 211Bi | actinium-C
|
| 210Bi | radium-E
|
| lead | 218Pb | lead
|
| 214Pb | radium-B
|
| 212Pb | thorium-B
|
| 211Pb | actinium-B
|
| 210Pb | radium-D, radiolead
|
| 208Pb | lead
|
| 207Pb | lead
|
| 206Pb | lead
|
| thallium | 210Tl | radium-C2
|
| 208Tl | thorium-D
|
| 207Tl | actinium-D
|
Back to the glossary of archaic chemical terms.