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 are unstable when the number of neutrons is too small or too large in relation to the number of protons. This disrupts the balance between the strong nuclear force and the electrostatic force, leading to instability and eventual decay. Therefore, option B is the correct answer as it states that the number of neutrons is too small in relation to the number of protons.

The Isotope Is Unstable