The binding energy of electrons in a metal is 193 kJ mol ^-1 .
<h3>What is binding energy?</h3>
The minimal amount of energy needed in physics and chemistry to separate a particle from a system of particles or to break a system of particles down into its component pieces is known as the binding energy. While the word separation energy is used in nuclear physics, the former meaning is more common in condensed matter physics, atomic physics, and chemistry.
The energy level of a bound system is often lower than that of its unbound components. Relativity theory states that a drop in a system's total energy of E leads to a corresponding decrease in its total mass of m, where
Δmc² = E.
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