Calculate the velocity of an electron if it has a wavelength of 20.8 A O a....

Question

Question

science chemistry

Answer 1

Answer #1

$\lambda$ = 20.8A⁰

= 20.8*10^-10m [ 1A⁰ = 10^-10 m]

m = 9*10^-31Kg

h = 6.626*10^-34 j-sec

$\lambda$ = h/mv

V = h/m $\lambda$

= 6.626*10^-34 /9*10^-31*20.8*10^-10 =3.6*10^5 m/sec >>>>answer

c. 3.6*10^5 m/sce>>>answer

Answer 2

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