Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|
what is the average atomic mass for nitrogen | 1.76 | 0.6 | 7036 | 23 |
average atomic mass of nitrogen | 1.75 | 0.7 | 4965 | 22 |
average atomic mass for hydrogen | 1.84 | 0.7 | 8977 | 87 |
average atomic mass of hydrogen | 0.87 | 0.8 | 5954 | 61 |
what is the average atomic mass of nitrogen | 1.73 | 0.7 | 427 | 51 |