ASNT Industrial Radiography Radiation Safety Practice Test

In which year did Marie Curie make the discovery of radium?

1. Late 1898

2. Early 1900

3. 1915

4. 1922

The correct answer is: Late 1898

Marie Curie made the discovery of radium in late 1898 while conducting research on radioactivity. Alongside her husband Pierre Curie, she successfully isolated radium from uranium ore and identified it as a new element. This groundbreaking discovery significantly advanced the field of radiochemistry and paved the way for further research into radioactive materials. The timeline of her work is crucial for understanding the historical context of radiation studies and the subsequent applications in medicine and science, emphasizing the importance of accurate dates in scientific history. The other years listed do not align with her discovery, as they fall either too early or too late in her research timeline.