Actinium - ₈₉Ac: compounds information

This section lists some binary compounds with halogens (known as halides), oxygen (known as oxides), hydrogen (known as hydrides), and some other compounds of actinium. For each compound, a formal oxidation number for actinium is given, but the usefulness of this number is limited for p-block elements in particular. Based upon that oxidation number, an electronic configuration is also given but note that for more exotic compounds you should view this as a guide only.

In compounds of actinium (where known), the most common oxidation numbers of actinium are: 3.

Hydrides

The term hydride is used to indicate compounds of the type M_xH_y and not necessarily to indicate that any compounds listed behave as hydrides chemically.

• Actinium dihydride: AcH₂

Fluorides

• Actinium trifluoride: AcF₃

Chlorides

• Actinium trichloride: AcCl₃

Bromides

• none listed

Iodides

• Actinium triiodide: AcI₃

Oxides

• Diactinium trioxide: Ac₂O₃

Sulfides

• Diactinium trisulphide: Ac₂S₃

Selenides

• none listed

Tellurides

• none listed

Nitrides

• none listed

Carbonyls

• none listed

Complexes

• none listed