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Physics, 22.04.2020 02:45 madelyngv97
The first excited state of a particular atom in a gas is 5.2 eV above the ground state. A moving electron collides with one of these atoms, and excites the atom to its first excited state. Immediately after the collision the kinetic energy of the electron is 2.2 eV. What was the kinetic energy of the electron just before the collision?
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The first excited state of a particular atom in a gas is 5.2 eV above the ground state. A moving ele...
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