The Half-Life of Strontium-90 Is 28

question 25

Multiple Choice

The half-life of strontium-90 is 28.1 years .Calculate the percent of a strontium sample left after 100 years.

• A) 76%
• B) 0.34%
• C) 63%
• D) 82%
• E) 8.5%

---

Definitions:

Charisma

The ability to command strong loyalty and devotion from followers and thus have the potential for strong influence among them.

Dominance

A social or hierarchical relationship in which one entity holds authority or influence over another.

Big Five Dimensions

A model describing five major personality traits: Openness, Conscientiousness, Extraversion, Agreeableness, and Neuroticism, used to understand individual differences.

Extraversion

A personality trait characterized by outgoingness, high energy, and positive emotions, preferring social interactions.