The density of a pure gold is 19.32g/cm3
if the volume is 4.30 cm3 then we can calculate the mass using the formula mass=density x volume
mass=19.32*4.30
mass=83.076g
        
             
        
        
        
The 2nd ionization energy is removing a 2nd electron from that resulting cation: 
<span>Li+ --> Li2+ + 1e- </span>