Actinium

scescape.net

Data tables and historic information.

26 visits Jul 12, 2024 Details

partisans.spurious.biz

Electronic, thermal, and steric data along with an isotope table.

300 visits Sep 9, 2024 Details

chemicalelements.com

Basic information, atomic structure, and isotopes.

182 visits Jan 10, 2026 Details

environmentalchemistry.com

Atomic structure, properties, and table of nuclides.

322 visits Apr 11, 2024 Details

education.jlab.org

Basic physical and historical information.

161 visits Dec 9, 2025 Details

periodic.lanl.gov

Basic information and history.

147 visits Feb 13, 2024 Details

lenntech.com

Physical data, chemical properties, health and environmental effects.

287 visits Aug 12, 2024 Details

chemsoc.org

Image, sources, biological role, key isotopes, and oxidation states.

299 visits Sep 13, 2025 Details

ebelements.com

Extensive information on history, uses, occurrence, compounds, and properties.

290 visits Jan 11, 2023 Details

en.wikipedia.org

Details the properties of the element, including its history, applications, and characteristics.

328 visits Mar 4, 2024 Details