Nuclear & Particle Physics - Binding Energy

Which of the following nuclei has the largest binding energy per nucleon? (Consider the most abundant isotope of each element.) 

A. Helium
B. Carbon
C. Iron
D. Uranium
E. Plutonium

(GR8677 #41)

Solution:

Uranium and Plutonium: decay spontaneously → very low binding energy.
Iron: the most stable element → tightly bound → the largest binding energy.

Source: hyperphysics.phy-astr.gsu.edu

Answer: C