Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|
do protons and electrons have the same mass | 1.65 | 0.6 | 2806 | 3 |
protons and electrons have the same mass | 0.63 | 0.4 | 6580 | 91 |
do protons have the same mass as electrons | 1.24 | 0.4 | 8638 | 74 |
protons have about the same mass as electrons | 1.4 | 0.6 | 5130 | 91 |
are protons and electrons the same mass | 0.77 | 1 | 2879 | 15 |