ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] THE elements 81 (thallium), 82 (lead), and 83 (bismuth) have both radioactive and inactive isotopes, whereas the elements 84–92 are only known in an active form. Several attempts have been made to find inactive isotopes of the latter elements. Aston, using his mass spectrograph, tried to ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/125744b0