Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|
hydrogen element discovery | 0.91 | 1 | 3406 | 46 |
date of discovery of hydrogen | 1.7 | 0.8 | 4478 | 35 |
who discovered hydrogen element | 0.83 | 0.6 | 2405 | 36 |
where was the element hydrogen discovered | 1.6 | 0.1 | 9837 | 43 |
what date was hydrogen discovered | 0.64 | 0.1 | 9754 | 93 |
the history and discovery of hydrogen | 1.7 | 0.8 | 9082 | 16 |
when was hydrogen discovered date | 1.32 | 0.1 | 6478 | 80 |
the discovery of hydrogen | 1.35 | 0.5 | 1982 | 41 |
when was hydrogen discovered | 2 | 0.8 | 3750 | 100 |
what year was hydrogen discovered | 1.02 | 0.2 | 5334 | 28 |
what day was hydrogen discovered | 1.2 | 0.5 | 4662 | 10 |
hydrogen element discovered | 1.73 | 0.3 | 4399 | 87 |
when was the element hydrogen discovered | 1.54 | 0.4 | 7518 | 81 |
who and when discovered hydrogen | 1.95 | 0.5 | 5853 | 58 |
who was hydrogen discovered | 0.49 | 0.9 | 7498 | 23 |
who discovered the hydrogen atom | 0.19 | 0.8 | 8970 | 77 |
scientist who discovered hydrogen | 0.32 | 0.1 | 3874 | 83 |