λ = h/(m×v)
Planck constant h = 6.626×10^-34 J s, m = mass of particle (e⁻) in kg
= 9.109× 10-31 kg, v = speed in m; speed= 1.53×10^5 m s^-1
λ = h/(m×v) = 6.626×10^-34/[(9.109×10-31)×1.53×10^5] = 4.75×10^-9 m = 4.75 nm
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λ = h/(m×v)
Planck constant h = 6.626×10^-34 J s, m = mass of particle (e⁻) in kg
= 9.109× 10-31 kg, v = speed in m; speed= 1.53×10^5 m s^-1
λ = h/(m×v) = 6.626×10^-34/[(9.109×10-31)×1.53×10^5] = 4.75×10^-9 m = 4.75 nm
http://chemistry.about.com/od/workedchemistryprobl...