Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|
the mass number of nitrogen is | 0.06 | 0.3 | 6213 | 6 |
what is the mass number of nitrogen | 1.75 | 0.8 | 8261 | 99 |
nitrogen atomic number and mass | 0.6 | 0.5 | 8212 | 9 |
nitrogen atomic mass number | 0.71 | 0.7 | 3977 | 79 |
atomic number and mass number of nitrogen | 0.06 | 0.5 | 9492 | 30 |
mass number hydrogen | 0.68 | 0.5 | 6676 | 95 |
mass number hydrogen-1 | 1.48 | 0.5 | 7301 | 81 |
nitrogen mass number | 0.35 | 0.9 | 6624 | 82 |