Structure of Atom

The orientation of an atomic orbital is governed by

Given : The mass of electron is 9.11 \(\times\) 10\(-\)31 kg, Planck constant is 6.626 \(\times\) 10\(-\)34 J s, the uncertainty involved in the measurement of velocity within a distance of 0.1 \(\mathop A\limits^ \circ\) is

The energy of second Bohr orbit of the hydrogen atom is \(-\)328 kJ mol\(-\)1; hence the energy of fourth Bohr orbit would be

The frequency of radiation emitted when the electron falls from n = 4 to n = 1 in hydrogen atom will be (Given ionization energy of H = 2.18 \(\times\) 10\(-\)18 J atom\(-\)1 and h = 6.625 \(\times\) 10\(-\)34 J s)

The velocity of Planck's constant is 6.63 \(\times\) 10\(-\)34 J s.
The velocity of light is 3.0 \(\times\) 108 m s\(-\)1. Which value is closest to the wavelength in nanometers of a quantum of light with frequency of 8 \(\times\) 1...

In hydrogen atom, energy of first excited state is \(-\) 3.4 eV. Then find out K.E. of same orbit of hydrogen atom

The following quantum numbers are possible for how many orbitals :
n = 3, \(l\) = 2, m = +2 ?

Main axis of a diatomic molecule is z, molecular orbital px and py overlap to from which of the following orbitals.

For given energy, E = 3.03 \(\times\) 10\(-\)19 Joules corresponding wavelength is (h = 6.626 \(\times\) 10\(-\)34 J sec, c = 3 \(\times\) 108 m/sec)

Isoelectronic species are