| Answer | Crossword Clue |
|---|---|
| protoactinium | a radioactive element that yields actinium on disintegration |
| Answer | Crossword Clue |
|---|---|
| protoactinium | a radioactive element that yields actinium on disintegration |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.