The size of an atom is approximately 10-8cm to locate an, Ask an Expert

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The size of an atom is approximately 10-8cm. to locate an electron within the atom, one should use electromagnetic radiation of wavelength not longer than, say, 10-9cm

a) what is the energy of a photon with such a wavelength (in ev)?

b) what is the uncertainty in the electron's momentum if we are certain about its position by 10-9cm?

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