bottom quark, matter, fermion 4.18 + 0.03 − 0.03 GeV/c2, known 4.21 × 109 eV/c2, 1.018 × 1024 Hz to 4.15 × 109 eV/c2, 1.003 × 1024 Hz derived 4.21419 × 109 eV/c2, 1.01899 × 1024 Hz to
| +32
| 33/32, 1 + (1/32), (3 × 11)/(2 × 2 × 2 × 2 × 2) | 1 |
charm quark, matter, fermion 1.29 + 0.05 − 0.11 GeV/c2, known 1.340 × 109 eV/c2, 3.240 × 1023 Hz to 1.180 × 109 eV/c2, 2.853× 1023 Hz derived 1.28034 × 109 eV/c2, 3.09586 × 1023 Hz to
| +109
| 110/109, 1 + (1/109), (2 × 5 × 11)/109 | 1 |