What Is the Decay Constant for ¹³¹I If the Half-Life

question 101

Multiple Choice

What is the decay constant for ¹³¹I if the half-life is 8.04 d?

• A)9.98 × 10^-7 s^-1
• B)9.31 × 10^-5 s^-1
• C)3.48 × 10^-6 s^-1
• D)4.81 × 10^-4 s^-1

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Definitions:

Unconditioned Response (UR)

An automatic, natural reaction to a stimulus that occurs without any need for prior learning or conditioning.

Ringing Bell

A sound or signal produced by a bell, often used to mark the beginning or end of an event, or to draw attention.

Conditioned Stimulus (CS)

In classical conditioning, an originally neutral stimulus that, after association with an unconditioned stimulus (US), comes to trigger a conditioned response (CR).

Pavlov's Experiments

A series of studies conducted by Ivan Pavlov that demonstrated classical conditioning, where dogs learned to associate a neutral stimulus (bell) with an unconditioned stimulus (food), leading to a conditioned response (salivating).