Hello! I have a very interesting question, whose answer I have not yet been able to find out. Now, according to The Standard Model there are three generations of matter, therefore three generations of quarks also. Generations of Quarks: 1st: up (u) & down (d) 2nd: charming (c) & strange (s) 3rd: top (t) & bottom (b) There are also three generations of corresponding Leptons: 1st: electron (e−) & electron-neutrino (νe) 2nd: muon (μ−) & muon-neutrino (νμ) 3rd: tauon (τ−) & tauon-neutrino (ντ) So, we also know that the proton is u+u+d and the neutron is u+d+d. Therefore who knows how we could find out about the physical and quantum mechanical properties of the second and third generations of proton and neutron, that is: ???? PROTON & NEUTRON 1st: uud & udd 2nd: ccs & css 3rd: ttb & tbb And if we have these higher energy protons and neutrons, we could build second and third generations of chemical elements, that is: 1st: H(=uud), He(=2uud+2udd), Li(=3uud+4udd), etc. 2nd: **H(=ccs), **He(=2ccs+2css), **Li(=3ccs+4css), etc. 3rd: ***H(=ttb), ***He(=2ttb+2tbb), ***Li(=3ttb+4tbb), etc. You would have to, of course, add the corresponding electrons, muons and tauons to their respective generational elements to get all your periodic table chemically stable. Now, my question is: Is it all possible, even if only theoretically? Does the Standard Model predict this? Or String Theory? Please answer me, because I believe this could initiate a very exciting new path of research (both theoretical and later even experimental...) Thank you!!!!