Someone teach me about Isospin and I3 please

[Pelion]

Everytime I think I get it something else confuses me.

e.g. I thought t , b , c , s quarks were just more massive versions of

u, d

but t , b, c, s all have isospin 0



help me please
exams soon

[ake]

[Pelion]

fyp

[a500lbgorilla]

BOOM HEADSHOT