|
| First family | Second family | Third family | |||
| Flavors | d | u | s | c | b | t |
| Rp-parity | +1 | +1 | +1 | +1 | +1 | +1 |
| Baryon number B | 1/3 | 1/3 | 1/3 | 1/3 | 1/3 | 1/3 |
| Electric charge Q | −1/3 | 2/3 | −1/3 | 2/3 | −1/3 | 2/3 |
| Isospin I | 1/2 | 1/2 | 0 | 0 | 0 | 0 |
| Third component of isospin I3 | −1/2 | 1/2 | 0 | 0 | 0 | 0 |
| Strangeness number S | 0 | 0 | −1 | 0 | 0 | 0 |
| Charm number C | 0 | 0 | 0 | 1 | 0 | 0 |
| Bottomness number | 0 | 0 | 0 | 0 | −1 | 0 |
| Topness number T | 0 | 0 | 0 | 0 | 0 | 1 |
| Third component of weak isospin (t3)L | −1/2 | 1/2 | −1/2 | 1/2 | −1/2 | 1/2 |