Technetium

Healthy brain scan using technetium-99m. Here the brain activity is colour-coded, from red (most active) through yellow to green and blue (least active).

Source: Science Photo Library

Technetium, so unique, so useful, so universal

Have you ever wondered about Technetium? 

Despite all its isotopes being radioactive, this element is used around the world to save lives. It is injected into tens of millions of people every year to diagnose difficult-to-detect cancers. But how was it made? What else is it used for? And how on earth did they find it?

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