The Decay Constant of a Radioactive Isotope Is $1.60 \times 10 ^ { - 3 } \mathrm {~s} ^ { - 1 }$

question 105

Multiple Choice

The decay constant of a radioactive isotope is $1.60 \times 10 ^ { - 3 } \mathrm {~s} ^ { - 1 }$ . At a given instant, the number of atoms of the radioactive isotope is $1.85 \times 10 ^ { 12 }$ . How many atoms of the isotope remain after a time interval of $30.0$ minutes?

• A) \(1.14 \times 10 ^ { 11 }\)
• B) \(1.52 \times 10 ^ { 11 }\)
• C) \(1.26 \times 10 ^ { 11 }\)
• D) \(1.04 \times 10^{11}\)
• E) \(1.38 \times 10 ^ { 11 }\)

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Definitions:

Commitment

The state or quality of being dedicated to a cause, activity, or job; wholehearted devotion.

Affective Organizational Commitment

The emotional attachment and identification an employee has with their organization, influencing their desire to remain part of it.

Coping

The process of managing external or internal demands that are perceived as taxing or exceeding personal resources.

Rapid Change

A situation or event that evolves quickly over a short period of time, often with profound effects.