7440-14-4 ??????
| ?????? ?? ??? |
?????? |
| ????????? |
??????; ?????????-????; ???????? 2146; ??????-X |
| ???????? ??? |
radium;Radium; Actinium-X; HSDB 2146; Thorium-X |
| ????? ???????? |
Ra |
| ?????? ??? |
226.0254 |
| InChI |
InChI=1/Ra.2H/rH2Ra/h1H2 |
| ??? ??????? ?????? |
7440-14-4 |
| EINECS |
231-122-4 |
| ????? ?????? |
|
|