i. Write the electronic conifigurations of the following ions:
a. `H^(Θ)`, b. `Na^(o+)`, c. `O^(2-)`, d. `F^(Θ)`
ii. What are the atomic numbers of elements whose outermost electrons are represented by
a. `3s^(1)`, b. `2p^(3)`, c. `3p^(5)`?
iii. Which atoms are indicated by the following configurations?
a. `[He]2s^(1)`, b. `[Ne]3s^(2) 3p^(3)`, c. `[Ar]4s^(2) 3d^(1)`