| Answer | Crossword Clue |
|---|---|
| CATHODERAY | Sir William Crookes discovery of 1879 |
| ELEMENTNEON | Sir William Ramsay discovery of 1898 |
| Answer | Crossword Clue |
|---|---|
| CATHODERAY | Sir William Crookes discovery of 1879 |
| ELEMENTNEON | Sir William Ramsay discovery of 1898 |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.