| qīng | hydrogen H, atomic number 1 |
| 氢 | hydrogen (chemistry) |
| 氢冷却器 | a hydrogen cooler |
| 氢净合成油 | hydrogenated oil |
| 氢化 | hydrogenation |
| 氢化可的松 | hydrocortisone; cortisol |
| 氢化氰 | hydrocyanic acid hydrogen cyanide |
| 氢化物 | hydride; hydrid; hydrogenate; hydrogenide |
| 氢化硼 | boron hydride |
| 氢化聚合物 | hydropolymer; hudropolymer |
| 氢化裂解 | hydro-cracking |
| 氢卤酸 | hydrohalic acid (e.g. hydrofluoric acid HFl 氫氟酸|氢氟酸 |
| 氢原子 | hydrogen atom |
| 氢原子核 | hydrogen nucleus |
| 氢弹 | H-bomb hydrogen bomb |
| 氢弹头 | hydrogen warhead |
| 氢弹起爆弹 | trigger for H-bomb |
| 氢气 | hydrogen (gas) |
| 氢气球 | hydrogen balloon |
| 氢氟烃 | hydrofluorocarbon(s) |
| 氢氟酸 | hydrofluoric acid HFl |