After 240 Years, 75% of the Radioactive Nuclides in a Particular

question 22

Multiple Choice

After 240 years, 75% of the radioactive nuclides in a particular sample of an isotope have decayed. What is the half-life of this radioactive isotope?

• A) 120 years
• B) 80 years
• C) 480 years
• D) 60 years
• E) 320 years

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Definitions:

Remedial Reading

Educational programs or strategies designed to improve reading skills in those who struggle with literacy.

Generalizing

The process of applying information, rules, or knowledge acquired in one situation to new situations to predict outcomes or understand unknowns.

Vivid Cases

Memorable or highly impactful instances or examples that strongly influence perception and decision-making.

Political Attitudes

Refers to an individual's or a group's views and opinions about political parties, policies, and systems.