| Answer | Crossword Clue |
|---|---|
| fluorine | nonmetallic chemical element, a yellowish toxic gas |
| chlorines | The chemical element of atomic number 17, a toxic, irritant, pale green gas |
| bromines | a nonmetallic halogen element that is isolated as a deep red corrosive toxic volatile liquid of disagreeable odor see element table |
| phosphorus | The chemical element of atomic number 15, a poisonous, combustible nonmetal that exists in two common allotropic forms, white phosphorus, a yellowish waxy solid that ignites spontaneously in air and glows in the dark, and red phosphorus, a less reactive form used in making matches |
| sarins | an extremely toxic chemical weapon C4H10FO2P that is used as a lethal nerve gas called also GB |
| sarin | an extremely toxic chemical weapon C4H10FO2P that is used as a lethal nerve gas called also GB |
