In 1900 Friedrich Ernst Dorn reported some experiments in which he noticed that radium compounds emanate a radioactive gas he named " Radium Emanation " ( " Ra Em " ).
12.
Radon was first identified in 1898 by Friedrich Ernst Dorn, and was named " radium emanation ", but was not considered a noble gas until 1904 when its characteristics were found to be similar to those of other noble gases.
13.
He was the first man in this country to advocate radium as the agent of choice in cervical carcinoma; the technique of burying radium emanation in the cervix was original with him and, in fact, all his work with radium emanation needles was primarily original.
14.
He was the first man in this country to advocate radium as the agent of choice in cervical carcinoma; the technique of burying radium emanation in the cervix was original with him and, in fact, all his work with radium emanation needles was primarily original.
15.
The reducing effect on chemical substances was alluded to, also the destruction of living tissues, and bacteria by radium emanations, and the general aspects of radio-activity were also dealt with and illustrated by numerous experiments, limelight views, and in other ways.
