What is the total number of unpaired eletrons in inert gas ?

Number of unpaired electrons in inert gas is

What is the number of unpaired electrons in : Fe^(2+) ?

What is the number of unpaired electrons in Nd (Z=60)

What is the number of unpaired electrons in : Cu^(+) ?

What is number of unpaired electrons in V^(3+) ion ?

Total number of unpaired electrons in O_2^(2-)

The total number of unpaired electrons in Rf (Z=104) are

The atomic number of an element is 35 . What is the total number of eletrons present in all the p orbitals of the ground state of that element?