If a Rock Started with 1,000 Atoms of a Parent

question 10

Multiple Choice

If a rock started with 1,000 atoms of a parent but now contains 250 atoms, how many half lives have passed?

• A) .25 half lives
• B) .5 half lives
• C) 1 half life
• D) 2 half lives
• E) there is no way to tell

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Definitions:

Social Situations

Various environments or contexts in which individuals interact with each other, governed by social norms and cultural standards.

Conscientiousness

A characteristic of being well-organized, reliable, and having a deep commitment to responsibilities.

Emotional Stability

The ability of an individual to remain calm and composed under stress, showing resilience and consistency in emotional reactions.

Emotional Stability

refers to an individual's ability to remain calm and composed, managing their emotions effectively, especially in stressful situations.