| Rating | Solver | Clue |
|---|---|---|
| CARBON | Non-metallic element | |
| SULPHUR | Non metallic element | |
| BORON | Non-metallic element, B | |
| PHOSPHORUS | A waxy poisonous inflammable non metallic element giving out light | |
| VANADIUM | ... It is intermediate between the metals and the non-metals, having both basic and acid properties. Symbol V (or Vd, rarely). Atomic weight 51.2. ... | |
| FLUORINE | A non-metallic, gaseous element, strongly acid or negative, or associated with chlorine, bromine, and iodine, in the halogen group of which it ... | |