Yahoo Web Search

Search results

    • The Isolation of Protoactinium (Element 91) - Nature

      Nature· 5 days ago

      THE exact relation of the actinium to the uranium-radium disintegration series has been a matter for discussion since the discovery of actinium. A. S. Russell (NATURE, Sept. 17, p. 402) has ...

    • Isolation of Fluorine - Nature

      Nature· 5 days ago

      ONE of the most difficult problems of modern chemistry has at last been satisfactorily solved. After three years of incessant labour, occasionally interrupted by temporary feelings akin to despair ...