Answer | Crossword Clue |
---|---|
radiostrontium | a radioactive isotope of strontium, esp strontium-90 |
radiostrontiums | RADIOSTRONTIUM, a radioactive isotope of strontium, esp strontium-90 |
ioniums | naturally occurring radioactive isotope of thorium. Symbol: Io; at. no.: 90; at. wt.: 230 |
ionium | naturally occurring radioactive isotope of thorium. Symbol: Io; at. no.: 90; at. wt.: 230 |