Problem Set #1 Name____________

1. What is an orbital?

2. What is the difference between an 2s orbital and a 2p orbital?

3. a. What is the charge on an electron? _____

b. What is the charge on a proton? _____

c. What is the symbol for a proton? _____

4. How many electrons can an orbital hold?

5. Does a resonance structure represent the true structure of a molecule? Explain.

6. What is an ionic bond?

7. What is a covalent bond?

8. In the molecule below describe the types of orbitals which overlap to form the bond indicated.

a. The atomic orbitals used to form this bond are an ________ and an _________.

b. The atomic orbitals used to form this bond are an ________ and an _________.

9. Put in the proper formal charges in the following structures (i.e. write the charge near the appropriate atom). All the molecules listed are neutral molecules (no NET charge).

10. Draw the resonance structures for the following ions.

11. Which anion is more stable and why?