1. What is the identity of Elements 1 and 2 in the green rock? 2. In the graphs below, sketch the mas spectrum for cach element; write the symbol of the isotope above each spectral line. Mass (a.m.u.) Mass (am.u) 3. Although nickel has a higher atomic number than cobalt, nickel's atomic mass is les than that of cobalt. Why 4. (Opeienal Is thin ruck a metrorite or a meteorwrong (Hint look at the metal composition of FeNi meterites: hatp://meteorites. waitl.odu/id/metal.htm) Abundance (%) Abundance (6)