«aus 1027»
, 
03.07.1884 Jena, Germany, 
16.06.1950 Göttingen, Lower Saxony, Germany?, [I8134], German chemist and physicist , N: a German chemist and physicist, Arnold began his career with Walter Nernst and then held a chair at the Technische Hochschule in Breslau, Germany.In 1930 he moved to the University of Goettingen and after the seizure of power became a member of the NSDAP in 1933 and worked further as a full professor in Goettingen.
He worked on the structure of liquids and electrolytic solutions and molecular physics.