Which of the following metals will provide the greatest shield against ionizing radiation
A
Iron
B
Manganese
C
Alminium
D
Lead
Verified Correct Answer: D.
Physical Principles & Numerical Solution
D = Lead:
Lead is highly effective at shielding against ionizing radiation, particularly gamma rays, due to its high density and atomic number.
Source: Myschool Past Questions Archive (Record #9126)