#### Answer

A) 141 kg Cd
B) 794 kg Ni
C) 111 kg Mn
D) 6.32 x 10^3 kg Li

#### Work Step by Step

Use Avogadro's number to convert from atoms to moles of cadmium. Then use the molar mass of cadmium to convert from moles to grams of cadmium. Finally, convert grams into kilograms.
Use Avogadro's number to convert from atoms to moles of nickel. Then use the molar mass of nickel to convert from moles to grams of nickel. Finally, convert grams into kilograms.
Use Avogadro's number to convert from atoms to moles of manganese. Then use the molar mass of manganese to convert from moles to grams of manganese. Finally, convert grams into kilograms.
Use Avogadro's number to convert from atoms to moles of lithium. Then use the molar mass of lithium to convert from moles to grams of lithium. Finally, convert grams into kilograms.