Pinhole: astatine? real names of the higher than 109?

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From: ASKDRSP@aol.com
Date: Mon Nov 29 2004 - 07:02:03 PST 

From: ASKDRSP@aol.com
Message-ID: <d5.1c44be2d.2edc93eb@aol.com>
Date: Mon, 29 Nov 2004 10:02:03 EST
Subject: Pinhole: astatine? real names of the higher than 109?

Hi Pinholers,

Please assist if you can. This is regarding the classification of Astatine (#
85 on the periodic table), is it a metalloid or a nonmetal ...? On a Holt
Chart it is categorized as a nonmetal and on a student's science chart of the
periodic table which he purchased from a science store, it shows astatine as a
metalloid. Which is most correct ... or is it one of those that can go either
way?

The other question is regarding the most current names for elements 110 and
higher. Are they found in nature? Do they have names other than unnilinium, etc
... and are their atomic masses stable or what? Any info is greatly
appreciated. Thank you. The chart that will be used for the 8th grade science test
shows only up to 109 on the periodic table so I was curious.

Thanks for the insights.

Take care and Happy Holidays,
Sue Pritchard

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