Lets let our mass equal 3 on alletals and solve using d=m/v equation
Aluminum V=3/2.70=1.11 Silver V=3/10.5=.286 Rhenium V=3/20.8=.144 Nickel V=3/8.90=.337 This gives us the following list from largest to smallest Aluminum, Nickel, Silver, and Rhenium