- 1s and 3s orbitals are similar in the sense that both have a maximum of two electrons and both have a spherical shape ,however they have are found on different energy levels ,indicated by the different principal numbers 1 and 3.
- the 2px and the 2pz have the same energy level by virtue of the same principal number 2 ,both take two electrons ,an up spin and low spin electron. The only difference is that they have different axis ,2px is on the x-axis and the 2pz is on the z-axis.
the maximum number of electrons in an atom n= 4 , l=0
when the angular quantum number is 0 ,the orbital is s. the outermost orbital for the atom is 4s2
the electron configuration of atom Q is 1s22s22p63s23p63d104s2
the electron numbers is 2+2+6+2+6+10+2 = 30 electrons