The valence shell electron of sodium has the quantum numbers
(n, l, m, s)
For valence shell (3s1), n = 3, l = 0, m = 0,
Calculate the energy required for the process
The ionization energy for the H-atom in the ground state is
2.18 × 10–18 J atom–1.
A photon of wavelength 1.4 Å collides with an electron. After collision, the wavelength of the photon is found to be 2.0 Å. Calculate the energy of the scattered electron.
If the binding energy of electrons in a metal is 250 kJ mol–1, what should be threshold frequency of the striking photons?
What is the minimum uncertainty in the position of a bullet of a mass 5g that is known to have a speed somewhere between 550,00000 and 550,00001 ms–1?
When would de Broglie wavelength of a moving electron become equal to that of a moving proton? Mass of electron =
9.1095 × 10–31 kg and mass of proton = 1.6725 × 10–27 kg.
How fast is an electron moving if it has a wavelength equal to the distance it travels in one second?
(mass of electron = 9.1 × 10–31 kg)
To which orbit the electron in the hydrogen atom will jump on absorbing 12.1 eV of energy?
Nitrogen has the electronic configuration and not which is determined by
The ratio of the energy of photon of λ = 2000 Å to that of λ = 4000 Å is
Which of the following has largest de-Broglie wavelength, provided all have equal velocity?