GENERAL KNOWLEDGE

GK

NUCLEAR SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What makes nucleus unstable?
A
The competition between the repulsive electric forces and the attractive strong nuclear force
B
The electrons in its atom
C
The force of attraction for other atoms close to it
D
None of the above
Explanation: 

Detailed explanation-1: -Too many protons (or too few neutrons) in the nucleus result in an imbalance between forces, which leads to nuclear instability. Figure 25.3. 1: Competing Interactions within the Atomic Nucleus. Electrostatic repulsions between positively charged protons would normally cause the nuclei of atoms (except H) to fly apart.

Detailed explanation-2: -When the atoms of an element have extra neutrons or protons it creates extra energy in the nucleus and causes the atom to become unbalanced or unstable.

Detailed explanation-3: -If the attractive interactions due to the strong nuclear force are weaker than the electrostatic repulsions between protons, the nucleus is unstable, and it will eventually decay.

Detailed explanation-4: -By itself, the Coulomb force between the protons in a nucleus would cause the nucleus to fly apart immediately. But nucleons, both protons and neutrons, also attract each other through another force, the “nuclear force.” It is this force that keeps a nucleus together.

Detailed explanation-5: -If atoms have more than 83 protons, the electromagnetic repulsion between them is greater than the strong nuclear force of attraction between them. This makes the nucleus unstable, or radioactive, so it breaks down.

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