Q: Strangeness, charm, bottomness, and topness are properties of what subatomic particle?


Read this paragraph and choose the correct option from the provided answers:

± symbols are the values for antiquarks. B is baryon number, S is strangeness, c is charm, b is bottomness, t is topness. Values are approximate, are not directly observable, and vary with model.

 Choices:

- pion

- dark matter

- molecules

- quarks


A:
quarks