Phrases starting with the letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Previous word: actinism
Next word: actino
Definition of: actinium series
The succession of radioactive elements resulting from the stepwise disintegration of uranium of mass number 235 to the stable isotope of lead of mass number 207.
Comment about this word, ask questions, or add new information about this topic: