7.2 Concepts #2

Mass defect is

• ∑m_nucleons – m_nucleus

• ∑m_nucleons – m_atoms

• ∑m_nucleus – m_nucleons

• ∑m_atoms – m_nucleons

Number of neutrons can be found by

• A – Z

• A - N

• N – Z

• Z – A

The energy of the mass defect is equivalent to

• Binding Energy

• Binding Energy per Nucleon

• Energy decay

• Mass of the decay

Binding Energy is present in ...

• the nucleus

• in the electrons

• nucleus and electrons

• neutrons

Binding Energy is

• Mass defect * c²

• BE/A * c²

• BE/A

• Mass defect / A

Binding energy is

• to completely separate nucleons

• To completely separate neutrons

• To completely join the nucleons

• To completely join the neutrons

MeV c^-2

• is a unit of mass

• is a unit of energy

• is a unit of Binding Energy

• Is only a unit of mass defect

These elements are most likely to undergo a fission reaction.

• Greater than A=20

• Greater than A=62

• Less than A=62

• Less than A=20