| A | B |
|---|
| composed of two atoms | diatomic molecule |
| ductile | can be drawn out into a wire |
| allotrope | different structural forms of the same element |
| transuranium element | after uranium on the periodic table |
| malleable | can be hammered into a thin sheet |
| sublimation | rocess of changing directly from a solid to a gas |
| semiconductor | will conduct an electric current under certain conditions |
| 46.6% | percentage of oxygen in earth's crust |
| Zinc, cadmium and mercury | Group 12 of the periodic table |
| Elements have more than 92 protons | transuranium elements |
| "Halogen" means | salt former |
| Nitrogen family | Group 15 |
| Oxygen group | Group 16 |
| Carbon group | Group 14 |
| Boron group | Group 13 |
| Mixed groups | contain metals, nonmetals and metalloids |
| Noble gases | Used to produce laser light shows |
| Bromine | only nonmetal that is liquid at room temperature |
