If After Three Half-Lives, a Mineral Crystal That Originally Contained

question 22

Multiple Choice

If after three half-lives, a mineral crystal that originally contained 80 atoms of a common, radioactive isotope of uranium would contain how many atoms of the original isotope?

• A) 40
• B) 20
• C) 10
• D) 5

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Definitions:

Infancy

The period in a human's life from birth to 12 months old, characterized by rapid growth and development in physical, cognitive, and emotional domains.

Latin Roots

The base parts of words originally derived from Latin, which form the foundation of many English words and can offer clues to their meanings.

Psychosocial Development

A domain of human development that involves changes in individuals' interpersonal relationships, emotions, and social skills throughout the lifespan.

Trust Vs. Mistrust

A stage in Erik Erikson's theory of psychosocial development where infants learn to trust their caregivers and environment or develop mistrust based on their interactions.