A Tiny Speck (8

question 47

Multiple Choice

A tiny speck (8.3  10^-7 mol) of radioactive Americium-241 is used in smoke detectors. How many atoms of Americium-241 are there in one of these smoke detectors?

• A) 5.0  10¹⁷
• B) 1.2  10²⁰
• C) 2.9  10²²
• D) 6.0  10²³
• E) 8.3  10⁷

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Definitions:

Inappropriate Behavior

Actions or conduct that are not suitable or proper in a given context or situation.

Autism Spectrum Disorders

A range of neurodevelopmental conditions characterized by challenges with social skills, repetitive behaviors, speech and nonverbal communication.

Repetitive Behaviors

Actions repeated in a similar manner over time, often observed in individuals with autism spectrum disorders but can occur in typical development as a means of learning or coping.

Communication Problems

Issues or barriers encountered in the process of exchanging information, ideas, or feelings between individuals or groups.