Meanings of protactinium in English

A 231Pa reference material has been characterized for amount of protactinium.

Scuffles soon arose over who'd first bagged hafnium, protactinium, and technetium.

This addition of a proton shifts it to the next element on the table, protactinium-233.

They rechristened it protactinium, or "parent of actinium," the element into which it (eventually) decayed.

This is also unstable, so the protactinium spits out another electron and transforms into what you started with, uranium-233.

Furthermore, figuring out how to extract unwanted elements produced as thorium decays-suchas protactinium-233-fromthefuel remains a major technical challenge.

In 1897, the newly knighted Sir William dove into radioactivity, even discovering (though without realizing it) the element protactinium in 1900.