| hydrogen atom | 3.95 | Every carbon atom and every hydrogen atom is the same. | ||
| hydrogen gas | 3.36 | The ship used hydrogen gas. | ||
| hydrogen fuel | 1.32 | They work when an atomic bomb acts as a very hot match to ignite hydrogen fuel. | ||
| hydrogen leak | 0.99 | Shein refused to comment on possible hydrogen leaks. | ||
| hydrogen sulphide | 0.66 | ...hydrogen sulphide. | ||
| hydrogen balloon | 0.59 | Planes and hydrogen balloons equipped with small explosives charges can also be used to disperse the chemicals. | ||
| hydrogen nucleus | 0.59 | In the sun, energy is produced when hydrogen nuclei fuse to produce helium, a heavier element. | ||
| hydrogen isotope | 0.46 | Tritium, a hydrogen isotope, can be lethal in very high quantities. | ||
| hydrogen analysis | 0.26 | Orocaecal transit time was measured by hydrogen breath analysis. | ||
| hydrogen bonding | 0.26 | These dimers are formed as a result of hydrogen bonding. | ||
| hydrogen cloud | 0.26 | And if there were hydrogen clouds bathed with ultraviolet light around distant stars, astronomers would have seen them by now. | ||
| hydrogen concentration | 0.26 | Breath hydrogen concentration was measured using an exhaled hydrogen monitor. | ||
| hydrogen economy | 0.26 | Does all this mean that the hydrogen economy is really at hand? | ||
| hydrogen fusion | 0.26 | No one doubts that hydrogen fusion can be achieved. | ||
| hydrogen molecule | 0.26 | The hydrogen molecule binds with the oxygen molecule. | ||
| hydrogen research | 0.26 | Story will include sidebar on the Hydrogen Bill and hydrogen research at UC Riverside. |