The actinium emanation was used in the experiment.
actinium emanation
Frequency:
60
%
The actinium emanation decayed rapidly.
actinium emanation
Frequency:
50
%
The actinium emanation is an isotope of actinium.
actinium emanation
Frequency:
45
%
The actinium emanation was highly radioactive.
Idiomatic Expressions for actinium emanation
Phrase: disappear like actinium emanation
Meaning: to vanish suddenly and completely
Usage: The thief disappeared from the scene like actinium emanation.