Question

expression for radius of orbits ، velocity of electron، energy of electron in orbits of hydrogen atom​

Answer 1

Answer:

✓Kepler's Third law can be used to determine the orbital radius of the planet if the mass of the orbiting star is known (R3=T2−Mstar/Msun, the radius is in AU and the period is in earth years)

We get radius of nth Bohr orbit rn=0. 529 n2 Ao.

✓The electron starts from rest (near enough) so the kinetic energy gained is given by ½mv 2 where m is its mass and v is its speed.

For an electron gun with a voltage between its cathode and anode of V = 100V the electron will have a speed of about v = 6 × 10 6 m/s

✓The energy of the electron of hydrogen atom in its nth orbit is given by En=−n213. 6 electron volt(eV).

Explanation:

helps u

Answer 2

Explanation:

The allowed electron orbits in hydrogen have the radii shown. These radii were first calculated by Bohr and are given by the equation rn=n2ZaB r n = n 2 Z a B .