| Answer | Crossword Clue |
|---|---|
| ARSENIDES | Poisonous chemical compounds. |
| thallium | The chemical element of atomic number 81, a soft silvery-white metal that occurs naturally in small amounts in pyrite and other ores. Its compounds are very poisonous |
| ARSENATES | Poisonous compounds. |
| ARSENIC | Element forming poisonous compounds |
| arsenic | grayish white element forming poisonous compounds |
| as | grayish-white element having a metallic luster, vaporizing when heated, and forming poisonous compounds. Symbol: As; at. wt.: 74.92; at. no.: 33 |
