Use the band of stability to determine if europium-154 is a stable or unstable nucleus. Hint: You
must first find the atomic number to determine the number of protons and then use the equation,
neutrons = mass number - protons, to find the neutrons.
On/Z=0.69, unstable
On/Z=0.69, stable
On/Z=1.44, unstable
On/Z=1.44, stable