14.37: A new element is discovered and named
dh0ufc-xls;x 7y2qp0 PhysicsBowlium (atomic symbol Phys). Its entry onto the standard periodic table of elements appears as in the figure
0x;7yq p2lfs-uh x0dc (with Helium shown 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 $20^{\circ}C$?