← Back to search

Meaning of actinium series | Babel Free

Noun CEFR B2

Definitions

The 4n+3 decay chain of uranium-235.

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

actinium-K actino-uranium actinobacillosis actinobacillus actinobacteriophage actinobacterium