A Test Tube of an Isotope Having a Decay Constant $0.765 \times 10 ^ { - 6 } \mathrm {~s} ^ { - 1 }$

question 119

Short Answer

A test tube of an isotope having a decay constant of $0.765 \times 10 ^ { - 6 } \mathrm {~s} ^ { - 1 }$ contains $3.0 \times 10 ^ { 17 }$ nuclei of this isotope.
(a) What is the half-life of this isotope?
(b) What is the initial activity (in Bq) of the isotope?
(c) What is the activity of the isotope after 12 days?

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Empirical Evidence

Information acquired by observation or experimentation that serves as the basis for knowledge and the formation of theories.

Philosophy

The study of fundamental questions about existence, knowledge, values, reason, mind, and language.

Operant Conditioning

An approach to learning where behavioral potency is changed through the implementation of incentives or consequences.

Classical Conditioning

A learning process in which two stimuli are repeatedly paired; a response that is initially elicited by the second stimulus is eventually elicited by the first stimulus alone.