Hi folks - here is the answer:

The Question
This element is naturally occurring and was first discovered in 1902. The 
chemical behavior of this element is nearly identical to the element La. 
This element is a weak beta emitter. Producing this element is very 
challenging and one of the easier production methods is to produce it 
synthetically by neutron bombardment of Ra isotopes in fission reactors. 
Who am I?

The Answer
The element is Actinium! 

Leland Woodall is our winner with the first (and only) correct response.

Have a great weekend everyone.

Dave Hillman
Rockwell Collins
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