ActiniumThis is a featured page


My Nucleus
Atomic Number: 89
Average Atomic Mass: 227
Half-Life: 21.8 years
My Electrons
Valence electrons: 2
Electron Configuration
Actinium - Chemistry with Mr. Olson
My Properties
Actinium's reaction with air
Color: silvery
Standard State: solid at 298k
Classification: Metallic
Actinium is dangerously radioactive and is found in uranium ores. It is 150 times more radioactive than radium.
My Home
(Body, Planet, Universe)
  1. Actinium is naturally found in uranium ores such as pitchblende.
  2. A tonne (metric ton = 1,000kg) of pitchblende contains at least 0.1g of actinium.
I am Element!
Actinium - Chemistry with Mr. Olson
My Compounds
(My Friends!)


My Story
Discovered By:
Andre Debierne

Origin of the name actinium comes from the Greek word "aktinos" meaning "ray".

Actinium was discovered while using seperation techniques for rare earth oxides.
My Jobs
Uses of Actinium:



The Fermi Surface of Actinium
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AndrewChang 		Latest page update: made by AndrewChang , Oct 20 2006, 10:21 PM EDT (about this update About This Update AndrewChang Edited by AndrewChang

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