I agree with Leland. Actinium is the answer.

http://www.chemistryexplained.com/elements/A-C/Actinium.html#ixzz0qZqID0bv

Sherif

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Leland Woodall
Sent: Friday, June 11, 2010 12:50 PM
To: [log in to unmask]
Subject: Re: [TN] NTC Friday Element Quiz - the Question

Actinium?  Just a guess...

Leland

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of David D. Hillman
Sent: Friday, June 11, 2010 12:14 PM
To: [log in to unmask]
Subject: [TN] NTC Friday Element Quiz - the Question

Hi folks - ok, Bev pointed out that I was not fulfilling my duty and had

not posted a Friday Element Quiz - here ya go:

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?

Good Luck - this should be a difficult element to identify.

Dave Hillman
Rockwell Collins
[log in to unmask]


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