The radioactive processes are spontaneous and uncontrollable, and are entirely unaffected by physical and chemical agencies.


Radioactivity And Radioactive Substances by James Chadwick (1921), Chapter 1, p. 5


The radioactive processes are spontaneous and uncontrollable, and are entirely unaffected by physical and chemical agencies.

The radioactive processes are spontaneous and uncontrollable, and are entirely unaffected by physical and chemical agencies.

The radioactive processes are spontaneous and uncontrollable, and are entirely unaffected by physical and chemical agencies.

The radioactive processes are spontaneous and uncontrollable, and are entirely unaffected by physical and chemical agencies.