The isotope
Is unstable.This is predictable because
A)the number of neutrons is too large in relation to the number of protons.
B)the number of neutrons is too small in relation to the number of protons.
C)the atomic number is too large.
D)the mass number is too large.
E)Sc isotopes are all unstable.

Question

The isotope 
Is unstable.This is predictable because
A)the number of neutrons is too large in relation to the number of protons. 
B)the number of neutrons is too small in relation to the number of protons. 
C)the atomic number is too large. 
D)the mass number is too large. 
E)Sc isotopes are all unstable.

Quizplus · Accepted Answer

Isotopes that have an imbalance between the number of protons and neutrons in the nucleus are generally unstable. This is because the strong nuclear force that holds the nucleus together is weakened by the repulsive force between the positively charged protons. If the number of neutrons is too small in relation to the number of protons, the nucleus will be unstable and will decay to a more stable state by emitting particles or radiation.

The Isotope Is Unstable.This Is Predictable Because