| A | B |
|---|
| How many valence electrons does K have? | 1 |
| How many valence electrons does Cl have? | 7 |
| How many valence electrons does N have? | 5 |
| How many valence electrons does O have? | 6 |
| What ion will Na make? | Na+ |
| An anion is a(n)positive charged ion | negative charged ion |
| A cation is a(n) | positive charged ion |
| What ion will F make? | F- |
| What ion will Mg make? | Mg2+ |
| What ion will N make? | N3- |
| What compound is formed when Mg and O combine? | MgO |
| What compound is formed when Li and Cl combine? | LiCl |
| What compound is formed when Mg and Cl combine? | MgCl2 |
| What compound is formed when Al and O combine? | Al2O3 |
| What compound is formed when Na and N combine? | Na3N |
| What compound is formed when Ca and F combine? | CaF2 |
| Ionic or covalent? Na and F | ionic |
| Ionic or covalent? C and O | covalent |
| Ionic or covalent? P and F | covalent |
| Ionic or covalent? Ba and S | ionic |
| When an atom loses electrons it becomes ___ charged | positive |
| When an atom gains electrons it becomes ___ charged | negative |
| If an atom has 5 valence electrons, you should expect it to | gain 3 electrons |
| If an atom has 7 valence electrons, you should expect it to | gain 1 electron |
| If an atom has 2 valence electrons, you should expect it to | lose 2 electrons |
| In order to conduct electricity, a substance must have | free electrons or ions |
| Ionic compounds conduct electricity when | the ions are free, when they are in water or melted |
| Atoms form bonds in order to | have a complete octet (a.k.a. to have the same configuration as the noble gases) |
| Ionic bonds are created when | one atom loses electrons (becomes +) and another gains electrons (becomes -) |
| Covalent bonds are created when | 2 or more atoms share electrons |
| Metallic bonds are created when | A metal loses electrons and the + nuclei float in a sea of electrons |
| The Lewis Structure for H2 is | H:H |
| The Lewis Structure for C2H2 is | H:C:::C:H |
