14.37: A new element is discovered and
l i*sst h1w,w7vc k1e;named PhysicsBowlium (atomic symbol Phys). Its entry onto the standard periodic table of elemen
c1sli1wwth s,;*vk7 ets appears as in the figure (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 $20^{\circ}C$?