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==Key Stage 5==
===Meaning===
A '''strange-quark''' ('''s''') is a type of [[quark]] with a [[Electrical Charge|charge]] of <math>-\frac{1}{3}</math> and a [[strangeness]] of -1.
===About Strange-quarks===
| style="height:20px; width:120px; text-align:center;"|
[[Strange-quark]]
| style="height:20px; width:120px; text-align:center;"|<math>qQ=-\frac{1}{3}</math>
| style="height:20px; width:120px; text-align:center;"|<math>S=-1</math>
| style="height:20px; width:120px; text-align:center;"|<math>B=+\frac{1}{3}</math>
| style="height:20px; width:120px; text-align:center;"|
[[Antistrange-quark]]
| style="height:20px; width:120px; text-align:center;"|<math>qQ=+\frac{1}{3}</math>
| style="height:20px; width:120px; text-align:center;"|<math>S=+1</math>
| style="height:20px; width:120px; text-align:center;"|<math>B=-\frac{1}{3}</math>
| style="height:20px; width:120px; text-align:center;"|<math>L=0</math>
|}