If an electron has a measured wavelength of 0.850 x 10-10 m,what is its kinetic energy? (h = 6.63 x 10-34 J*s,1 eV = 1.6 x 10-19 J,and me = 9.11 x 10-31 kg)
A) 55.0 eV
B) 104 eV
C) 147 eV
D) 209 eV
Correct Answer:
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