The radius of the second Bohr orbit for hydrogenatom is(Planck's Const. h = 6.6262 × 10 –34 Js;mass of electron = 9.1091 × 10–31 kg;charge of electron e = 1.60210 × 10–19 C;permittivity of vacuumH0 = 8.854185 × 10 –12 kg–1 m –3 A2)

The radius of an orbit of hydrogen atom is 0.85 nm, then calculate thevelocity of electron in this orbit ?

The radius of the second Bohr orbit of Li+2 ion, in terms of the Bohr radius (a0) of hydrogen atom is

The radius of the innermost electron orbit of a hydrogen atom is5.3×10–11 m. The radius of the n =3 orbit is

A hydrogen atom is in an excited state with n = 2. Using the Bohr model of hydrogen, find the following.the radius of the electron orbit (in nm).Answer for part 1the angular momentum of the electron - use SI unitsAnswer for part 2the kinetic energy of the electron (in eV).Answer for part 3the potential energy of the electron (in eV).  Note that this may be a negative number.Answer for part 4the total energy of the electron (in eV). Note that this may be a negative number.

Frequency of the de-Broglie wave of electron in Bohr's first orbit of hydrogen atom is _______ ×1013 Hz×1013 Hz (nearest integer). [Given : RH( Rydberg constant )=2.18×10−18 J,h (Plank's  constant )=6.6×10−34 J.s.]