The diagram below shows the energy levels of the orbitals found in atoms of the second period (Li to Ne). Add labels to the energy levels so that the principal quantum number and the orbital type are shown at each level.
On the axes below, produce a sketch of one example of each different orbital type (shape) occupied by the electrons in a second-period element. Add a label for each type.
Complete the electronic configurations of nitrogen atoms and oxygen atoms on the energy level diagrams below. Represent electrons with arrows.
Use the Data Booklet to state the first ionisation energy values for nitrogen and oxygen. N $\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots$ $\text{kJ mol}^{-1}$, O $\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots$ $\text{kJ mol}^{-1}$.
Explain, using your answer to (a)(iii), the relative values of these two ionisation energies.