Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|
average atomic mass of nitrogen | 1.6 | 0.7 | 6743 | 7 |
average atomic mass of hydrogen | 1.63 | 0.5 | 5495 | 39 |
what is the average atomic mass of nitrogen | 0.85 | 0.6 | 4532 | 76 |
what is the average atomic mass of hydrogen | 0.08 | 0.3 | 2162 | 55 |
what is the average atomic mass of hydrogen-1 | 1.46 | 0.3 | 8287 | 89 |