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Answer for the clue "Element used in radiation research ", 9 letters:
americium

Alternative clues for the word americium

Word definitions for americium in dictionaries

Wikipedia Word definitions in Wikipedia
Americium is a radioactive transuranic chemical element with symbol Am and atomic number 95. This member of the actinide series is located in the periodic table under the lanthanide element europium , and thus by analogy was named after the Americas . Americium ...

Wiktionary Word definitions in Wiktionary
n. The chemical element (''symbol'' Am) with an atomic number of 95.

WordNet Word definitions in WordNet
n. a radioactive transuranic metallic element; discovered by bombarding uranium with helium atoms [syn: Am , atomic number 95 ]

Usage examples of americium.

You wanna hear how I smelted the americium into two subcritical masses?

Wearing her arms inspectorate hat, she was all too familiar with the effects of americium bombs: nuclear weapons made with an isotope denser and more fissile than plutonium, more stable than californium.

But the point is that its heavy elements have been bombarded, and most of its uranium has gone over to plutonium and americium and curium.

You wanna hear how I smelted the americium into two subcritical masses?

The intermediate elements referred to in this radioactive decay chain are lead (symbol Pb, element 82), polonium (Po, element 84), astatine (At, element 85), francium (Fr, element 87), radium (Ra, element 88), actinium (Ac, element 89), thorium (Th, element 90), protoactinium (Pa, element 91), uranium (U, element 92), neptunium (Np, element 93), and americium (Am, element 95).

Wearing her arms inspectorate hat, she was all too familiar with the effects of americium bombs: nuclear weapons made with an isotope denser and more fissile than plutonium, more stable than californium.