The stabilisation of a half filled d - orbital is more pronounced than that of the p-orbital why?

How many orbitals are possible for n = 4?

How fast must a 54g tennis ball travel in order to have a de Broglie wavelength that is equal to that of a photon of green light 5400\(\overset { 0 }{ A } \) ?

Give the electronic configuration of Mn²⁺ and Cr³⁺

What is the charge and mass of an electron?

What is the difference between atomic mass and mass number?

Bring out the similarities and dissimilarities between a 1s and 2s orbital.

The ground state electronic configurations listed below here are incorrect. Explain what mistakes have been made in each and correct the electronic configuration.
(i) Al = 1s² 2s² 2p⁴ 3s² 3p⁶ .
(ii) B = 1s² 2s² 2p⁵
(iii) F = 1s² 2s² 2p⁵.

What is the angular momentum of an electron in
(i) 2s orbital
(ii) 4f orbital?

The kinetic energy of a subatomic particle is 5.58 x 10^-25 J. Calculate the frequency of the particle wave. (Planck's constant h = 6.626 x 10^-34 kg m² s^-1)

Which is the actual configuration of Cr ( Z = 24). Why?

Explain how matter has dual character?

How many orbitals are possible in the 3^rd energy level?

Mention the shape of s, p, d orbitals.