# Significance of isolation of radium? [duplicate]

This is an extension of my previous question here.

Marie Curie isolated radium in 1903, which paved the way for the development of the theory of radioactivity. In regards to the techniques she used however, what was the impact of the establishment of those techniques? Were the techniques used by Curie new? Are they used today? What impact did they have on modern physics?

I can find a lot of information online about the actual isolation of radium, but not regarding the significance of the techniques used.

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