14.37: A new element is discovered and named PhysicsBowlium (atomic symbol Phys
ei-mx)- nfj:a). Its entry onto the standard periodic table of elements appears as in the figure (with Helium show
ia-xfme nj) :-n as well). Given a sample of Phys which acts as a perfect monatomic ideal gas, what is the root-mean-square speed of the atoms of the gas if the sample is at $20^{\circ}C$?