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jan 6, 1900 - Soddy

Description:

Observed spontaneous disintegration of radioactive elements into variants he called "isotopes" or totally new elements, discovered "half-life", made initial calculations on energy released during decay.

Added to timeline:

Scientific method of atom

ByNashua Lovett
11 Dec 2018
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Date:

jan 6, 1900
Now
~ 125 years ago
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