Strontium-90 Is a Byproduct in Nuclear Reactors Fuelled by the Radioisotope

question 82

Multiple Choice

Strontium-90 is a byproduct in nuclear reactors fuelled by the radioisotope uranium-235.The half-life Of strontium-90 Is 28.8 y.What percentage of a strontium-90 sample remains after 75.0 y?

• A)68.1
• B)16.4
• C)7.40
• D)38.4
• E)2.60

---

Definitions:

Interpretation

The act of explaining or understanding the meaning or significance of something.

Past Experience

The accumulation of knowledge, skills, or encounters that an individual has had in their life, which influences their actions, decisions, and perceptions.

Love

A complex set of emotions, behaviors, and beliefs associated with strong feelings of affection, protectiveness, warmth, and respect for another person.

Ability to Fantasize

The capacity of an individual to imagine scenarios, events, or experiences, often beyond current reality.