| The properties of the semimetals, or metalloids, lie between those of the metals and the nonmetals. |
| It reacts with many metals and metalloids to form phosphides. Phosphorus atoms can bond with oxygen atoms to form ester groups. |
| The metalloids are adjacent to a diagonal line from boron to polonium. |
| This award-winning site has a number of sections relating to alkaline earth metals, transition metals, other metals and metalloids. |
| The metalloids have an intermediate number of valence electrons. |
| Chemically, elements can be classified as metals, metalloids, or non-metals based, in part, upon these physical properties. |
