| Answer | Crossword Clue |
|---|---|
| ISOTOPE | Carbon 12 or cobalt 60 |
| ISOTOPE | Carbon 13 or cobalt 60 |
| ISOTOPE | Carbon-13 or cobalt-60 |
| Answer | Crossword Clue |
|---|---|
| ISOTOPE | Carbon 12 or cobalt 60 |
| ISOTOPE | Carbon 13 or cobalt 60 |
| ISOTOPE | Carbon-13 or cobalt-60 |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.