Mesons Made from a quark and an antiquark 
| Pion Plus | Charge | Baryon Number (B) | Strangeness |  | Pion Minus | Charge | Baryon Number (B) | Strangeness | 
| u | +⅔ | +⅓ | 0 |  | ū | -⅔ | -⅓ | 0 | 
| d̄ | +⅓ | -⅓ | 0 |  | d | -⅓ | +⅓ | 0 | 
| π+ | +1 | 0 | 0 |  | π- | -1 | 0 | 0 | 
| Pion Zero | Charge | Baryon Number (B) | Strangeness |  | Pion Zero | Charge | Baryon Number (B) | Strangeness | 
| u | +⅔ | +⅓ | 0 |  | d | -⅓ | +⅓ | 0 | 
| ū | -⅔ | -⅓ | 0 |  | d̄ | +⅓ | -⅓ | 0 | 
| π0 | 0 | 0 | 0 |  | π0 | 0 | 0 | 0 | 
| Kaon Plus | Charge | Baryon Number (B) | Strangeness |  | Kaon Minus | Charge | Baryon Number (B) | Strangeness | 
| u | +⅔ | +⅓ | 0 |  | ū | -⅔ | -⅓ | 0 | 
| s̄ | +⅓ | -⅓ | +1 |  | s | -⅓ | +⅓ | -1 | 
| K+ | +1 | 0 | +1 |  | K- | -1 | 0 | -1 | 
| Kaon Zero | Charge | Baryon Number (B) | Strangeness |  | AntiKaon | Charge | Baryon Number (B) | Strangeness | 
| d | -⅓ | +⅓ | 0 |  | d̄ | +⅓ | -⅓ | 0 | 
| s̄ | +⅓ | -⅓ | +1 |  | s | -⅓ | +⅓ | -1 | 
| K0 | 0 | 0 | +1 |  | K̄0 | 0 | 0 | -1 |