Question

an electron is placed in a box about the size of an atom that is about 1×10×-10 m. what is the velocity of electron
$1 \times {10}^{ - 19}$
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Answer 1

Answer:A free electron can have any velocity based on its energy. I think it makes more sense to ask what is the velocity of an electron in an atomic orbit, but I think that was another question on Quora. Incidentally, the size of an atom is roughtly 10^-15 meters (that is not a firm value, see Diameter, Radius of an Electron to see that we have a range of estimates). The size of an electron orbit in a small atom like hydrogen is about 10^-10. So an electron in an atom sized box is a small dot in a large volume (the diameter would be about 100,000 times the diamter of the electron).

Explanation: