The alkali metal with same number of electrons in 3rd orbit and 4th orbit is (A) Na (B) K (C) Rb (D) Cs

The number of orbitals in 3rd orbit are

The angular momentum of an electron in 4s orbital, 3p orbitals ajnd 4th orbit are

The ratio of the velocity of electron in 3rd and 5th orbit of hydrogen atom is

Arrange the following alkali metal ion in decreasing order of their mobility : Li^(+), Na^(+), K^(+), Rb^(+), Cs^(+)

Determine wavelength of electron in 4th Bohr's orbit

The de Broglie wavelength of an electron in the 3rd Bohr orbit is