How many unpaired electrons are present in the ground state of
(i) Cr³⁺ (Z = 24)
(ii) Ne (Z = 10)

What is meant by electronic configuration? Write the electronic configuration of N (Z = 7).

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

What is the actual configuration of copper (Z = 29)? Explain about its stability.

Explain Thomson's atom model.

Explain about theory of electromagnetic radiation.

Explain how matter has dual character?

Explain about the significance of de Broglie equation.

How many electrons can be accommodated in the main shell I,m and n?

How many electrons that can be accommodated in the subshell s, p, d, f?

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

What are \(\psi\) and \(\psi^2\)?

What is meant by nodal surface?

Calculate the total number of angular nodes and radial nodes present in 4p and 4d orbitals.

Write the equation to calculate the energy of n^th orbit.

What are degenerate orbitals?

Mention the shape of s, p, d orbitals.

The energies of the same orbital decreases with an increase in the atomic number. Justify this statement.

State Hund's rule of maximum multiplicity