Binding energy is defined as?

Binding energy is defined as?

• A. The energy required to break a nucleus apart.
• B. The energy required to form chemical bonds between atoms.
• C. Energy associated with electron orbitals.
• D. Energy emitted during fission.

Answer: (A)

Binding energy is the energy required to break a nucleus into its individual protons and neutrons. It’s also the energy released when the nucleus forms from those nucleons, which explains why more strongly bound nuclei are more stable. This energy is tied to the mass defect: the nucleus weighs less than the sum of its separate nucleons, and that missing mass corresponds to the binding energy via E = Δm c^2. The other ideas describe different kinds of binding: chemical bond energy relates to bonds between atoms in molecules, electron orbital energy to electrons bound to the atom, and energy from fission refers to the energy released when a nucleus splits, not the energy needed to hold it together.

Binding energy is the energy required to break a nucleus into its individual protons and neutrons. It’s also the energy released when the nucleus forms from those nucleons, which explains why more strongly bound nuclei are more stable. This energy is tied to the mass defect: the nucleus weighs less than the sum of its separate nucleons, and that missing mass corresponds to the binding energy via E = Δm c^2. The other ideas describe different kinds of binding: chemical bond energy relates to bonds between atoms in molecules, electron orbital energy to electrons bound to the atom, and energy from fission refers to the energy released when a nucleus splits, not the energy needed to hold it together.