| Answer | Crossword Clue |
|---|---|
| chlorines | The chemical element of atomic number 17, a toxic, irritant, pale green gas |
| hydrogen | A colorless, odorless, highly flammable gas, the chemical element of atomic number 1 |
| Answer | Crossword Clue |
|---|---|
| chlorines | The chemical element of atomic number 17, a toxic, irritant, pale green gas |
| hydrogen | A colorless, odorless, highly flammable gas, the chemical element of atomic number 1 |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.