An electron is known to be confined to a region of width 0.1 nm. What is an approximate expression for the least kinetic energy it could have, in eV?

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Heisenberg's Uncertainty Principle: The position and momentum of a particle cannot both be measured precisely at the same time.

The Pauli exclusion principle: No two electrons in an atom can occupy the same quantum state.


An electron is known to be confined to a region of width 0.1 nm. What is an approximate expression for the least kinetic energy it could have, in eV?