Radioactivity

India

March 13, 2007 4:23pm CST

When was radioactivity discovered?

2 responses

@cosmos_genius (217)

• India

3 Apr 07

Radioactivity was discovered in the year 1896 by Henri Becquerel.

@kurtbiewald (2625)

• United States

13 Mar 07

Roentgen, and the Curies I think like 100 years ago