The half-life of Candium is not a standardized term as "Candium" does not correspond to a recognized element on the periodic table. It is possible you may be referring to a fictional or hypothetical element. However, typically in radioactive decay, the half-life refers to the time it takes for half of the radioactive atoms in a sample to decay.
Based on your options, if we assume these are hypothetical half-lives:
- a: 713 million years
- b: 813 million years
- c: 6 million years
To answer your question regarding the "shakes," if we consider "shakes" as a unit of time where 1 shake = 10 nanoseconds, we can convert these values:
- a: 713 million years = 713,000,000 years ≈ 2.25 trillion shakes
- b: 813 million years = 813,000,000 years ≈ 2.57 trillion shakes
- c: 6 million years = 6,000,000 years ≈ 190 billion shakes
If you need a specific value based on context or guidelines on what "Candium" is supposed to represent, please provide more details!