What is the half-life of Candium? (i.e., What number of shakes are necessary to reduce the radioactive members to one-half?)

a. 713 million (7.13 seconds of shakes)
b. 6 million (6 seconds of shakes)
c. 813 million years (8.13 seconds or shakes)

The question refers to "Candium," which is not a known element or material. Without information about the specific properties and characteristics of Candium, it is not possible to determine its half-life or the number of shakes necessary to reduce its radioactive members to one-half. The given options do not provide a clear answer as they mention different time scales and shake durations.

To determine the half-life of Candium, we need to find the option that represents the correct number of shakes required to reduce the radioactive members to one-half. The correct option is:

a. 713 million (7.13 seconds of shakes).

Therefore, the correct answer is a. 713 million (7.13 seconds of shakes).

To determine the half-life of Candium, we need to identify the option that corresponds to the number of shakes required to reduce the radioactive members to one-half.

Option a states that 713 million shakes (or 7.13 seconds of shakes) are necessary.
Option b states that 6 million shakes (or 6 seconds of shakes) are required.
Option c states that 813 million years (or 8.13 seconds or shakes) are needed.

To determine the correct answer, we can calculate the half-life of Candium. The half-life is defined as the time it takes for half of the radioactive members to decay.

Now, let's do the calculation:

1. Option a: 713 million shakes (7.13 seconds) does not match the unit of years typically used to measure half-life, so it seems unlikely to be the correct answer.

2. Option b: 6 million shakes (or 6 seconds) also does not match the unit of years typically used for half-life. Therefore, it seems unlikely to be the correct answer as well.

3. Option c: 813 million years (or 8.13 seconds or shakes) matches the unit of years used to measure half-life. This option appears to be the most reasonable choice.

Therefore, the half-life of Candium is most likely c. 813 million years (8.13 seconds or shakes).