Material Density (g/cm3) Aluminum 2.7
Benzene
0.9
Magnesium 1.7
Water
1
Iron
7.8
If all of these
substances were
placed together in
the same container,
which would end
up on the bottom?
A. Aluminum
B. Benzene
C. Iron
D. Magnesium

You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13