Structure of At...

The boher model of atoms

In hydrogen atom which quantity is integral multiple of $$\dfrac{h}{2\pi}$$

Which substance is discovered by the Prafulla Chandra Ray the inventor of Indian Chemical Industry ?

When a hydrogen atom is raised from ground to excited state.

If $$n = 3 , l = 0 , m = 0 $$ then atomic number is 

In the ground state, an element has $$13$$ electrons in its M-shell. The element is

The maximum number of electrons in an orbit with $$l = 2 , n = 3 $$ is 

Any p-orbital can accommodate upto

If Aufbau rule is not obeyed and the electronic filling occurs orbit by orbit till saturation is reached (for a given principal quantum number $$n$$, electrons are filled in the increasing order of azimuthal quantum number $$l$$), then the percentage change in sum of all $$(n + l)$$ values for unpaired electrons in an atom of iron is $$10x$$. What is the value of $$x$$?

The orbital diagram in which aufbau principle is violated is: