promethium

Noun

Meaning

a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium

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Examples

Compared to the lanthanides, which (except for promethium ) are found in nature in appreciable quantities, most actinides are rare. Source: Internet

It has been shown that europium is "responsible" for about 12 grams of promethium in the Earth's crust. Source: Internet

Natural technetium and promethium are produced in this manner. Source: Internet

However, if the packaging is damaged, then promethium becomes dangerous to the environment and humans. Source: Internet

If a promethium leak is found, the area should be identified as hazardous and evacuated, and emergency services must be contacted. Source: Internet

If radioactive contamination is found, the contaminated area should be washed with water and soap, but, even though promethium mainly affects the skin, the skin should not be abraded. Source: Internet

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