41![The periodic table
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1 2 The periodic table
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42![Commentary I The Positions of Lanthanum (Actinium) and Lutetium Commentary I The Positions of Lanthanum (Actinium) and Lutetium](https://www.pdfsearch.io/img/bbe7e79a199313bc47660923cc41aa79.jpg) | Add to Reading ListSource URL: www.che.uc.eduLanguage: English - Date: 2009-12-11 14:07:29
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43![546.5 /’4 W3P 546.5 /’4 W3P](https://www.pdfsearch.io/img/8952f4882525e119b38765d8e2b5e9f1.jpg) | Add to Reading ListSource URL: library.lanl.govLanguage: English - Date: 2000-06-21 15:44:11
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44![F REDERICK S O D D Y The origins of the conceptions of isotopes F REDERICK S O D D Y The origins of the conceptions of isotopes](https://www.pdfsearch.io/img/ecc5baaf3da8f57ebadfff74cea88bbf.jpg) | Add to Reading ListSource URL: www.nobelprize.orgLanguage: English - Date: 2006-05-31 16:46:43
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45![Commentary I The Positions of Lanthanum (Actinium) and Lutetium Commentary I The Positions of Lanthanum (Actinium) and Lutetium](https://www.pdfsearch.io/img/d54a082de25d2d0cbec8cf2c948c48e6.jpg) | Add to Reading ListSource URL: www.che.uc.eduLanguage: English - Date: 2009-12-11 14:07:29
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46![CHAPTER TWO ACTINIUM CHAPTER TWO ACTINIUM](https://www.pdfsearch.io/img/deda02123562a5fd23b30c2208861fa5.jpg) | Add to Reading ListSource URL: radchem.nevada.eduLanguage: English - Date: 2008-10-22 12:12:37
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47![](https://www.pdfsearch.io/img/0f6c9ab7c4ac45189f2f80fc60718ee8.jpg) | Add to Reading ListSource URL: radchem.nevada.eduLanguage: English - Date: 2008-10-22 12:12:37
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