[math-fun] Isotope separation via bosons/fermions

At the risk of upsetting Big Brother, what is the boson/fermion status of U-235 and U-238 ?

Is one a fermion and the other a boson, or are they both fermions or both bosons ?

-- U=element 92. Since 92 is even: 235 is odd, hence U235 is a fermion. 238 is even, so U238 is a boson.