How many moles of atoms are there in 0.04 g of the elements contains 6.02×10the power of 23 atoms.

I think we will not need 0.04g

we can get moles from 6.02×10^23 atoms  

By divide atoms by avogadros number

moles = 6.02×10^23/6.02×10^23=1

I hope it helps

if two electrons have the same n, the same ℓ, and the same ml, then they are in the same orbital. the pauli exclusion principle states that no two identical fermions (a fancy word for electrons and other subatomic particles like electrons) may occupy the same quantum state in an atom simultaneously.

the answer is definitely c.