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Pinal Geology and Mineral Museum

The Only Science Museum in Pinal County, Arizona

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PGMS/M Newsletter
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For Teachers and Parents
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- Society & Museum Contact Form

Pinal Geology and Mineral Museum

The Only Science Museum in Pinal County, Arizona

Home
PGMS/M Newsletter
Our Blog
Museum Exhibits
Kid Zone for all ages
Museum Calendar
Pinal Geology and Mineral Society
For Teachers and Parents
Sitemap
Contact Us/Museum Location
- Society & Museum Contact Form

Actinium

by Pinal Geology Museum
August 10, 2023August 10, 2023

Chemical Symbol: Ac

Atomic Number: 89

Atomic Mass: 227.0278 g/mol

Discovered by Friedrich Oskar Giesel in 1902.

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