1. The problem statement, all variables and given/known data The [tex]\Sigma[/tex] hyperon exists in three charge states (+1,0,-1 in electron charge units) Show that it has strangeness S = -1. 2. Relevant equations 3. The attempt at a solution I'm not too sure how to approach this question. I've been studying SU(3) quark diagrams where the Sigma's all lie on the S=-1 plane, but I don't think that's what the question is asking. Can anybody offer any insight?