You may assume the following constants:
Electron rest mass,
me= 9.1 x 10-31Kg
Proton rest mass,
mp=1.7
x 10-27Kg
Electron charge,
q = 1.6 x 10-19C
Permittivity of free space
εo = 8.85 x 10-12
Fm-1
Permeability of free space
μo = 4π x 10-7
Hm-1
Planck’s constant
h = 6.625 x 10-34
Js
Velocity of light in Vacuum
co = 3.0 x 108 ms-1
(4εo π)-1 =
9.0 x 109 mF-1
Local intensity of Earth’s
gravitational,
g=9.8 ms-2
Newton’s gravitational constant,
G = 6.7 x 10-11 Nm2kg-2
Avogadro number,
N
A=6.02x10
23
mol
-1