How many microcuries are equivalent to 250 kilobecquerels?

To determine how many microcuries are equivalent to 250 kilobecquerels, it's important to understand the conversion between becquerels, curies, and microcuries.

One curie (Ci) is equal to 3.7 × 10^10 decays per second, and one microcurie (uCi) is one-millionth of a curie, or 3.7 × 10^4 decays per second. On the other hand, one kilobecquerel (kBq) is equal to 1,000 decays per second.

Therefore, converting kilobecquerels to microcuries involves the following steps:

1. Convert kilobecquerels to becquerels:

• 250 kBq = 250,000 Bq (since 1 kBq = 1,000 Bq).

2. Convert becquerels to curies:

• 250,000 Bq ÷ 3.7 × 10^10 Bq/Ci = approximately 6.76 × 10^-6 Ci.

3. Convert curies to microcuries:

• 6.76 × 10^-6 Ci x