Electrons are identified by quantum numbers n and l. Define them.

The electrons, identified by quantum numbers 'n' and (i) 'n=4, l=1' (ii) 'n=4, l=0' (iii) 'n=3, l=2' (iv) 'n=3, l=1' can be placed in order of increasing energy, from the lowest to the highest as

Statement 1: In hydrogen and hydrogen like species, orbital energy depends only on the quantum number n whereas in multi-electron atoms it depends on quantum numbers n and l. Statement 2 : The principal quantum number determine the size and the energy of the orbital.

The electrons in an atom are designated by a set of quantum numbers labelled as n,l,m and s. Which of the following set of quantum numbers are not n=0,l=0,m=0,s=+1/2

The electrons in an atom are designated by a set of quantum numbers labelled as n,l,m and s. Give the values of n,l,m and s for the valence electron of sodium atom, (atomic number =11)

The electrons in an atom are designated by a set of quantum numbers labelled as n,l,m and s. State Pauli’s exclusion principle.

The electrons in an atom are designated by a set of quantum numbers labelled as n,l,m and s. Which of the following set of quantum numbers are not allowed? n=2,1=1,m=0,s=-1//2

The electrons in an atom are designated by a set of quantum numbers labelled as n,l,m and s. Which of the following set of quantum numbers are not n=1,1=0,m=0,s=+1//2

The maximum number of electrons that can have principal quantum number n=3 and spin quantum number: m_(s)=-(1)/(2) is

An electron has a spin quantum number +1/2 and a magnetic quantum number -1, It cannot be present in: