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Concept explainers
(a)
Interpretation: Half-life of copper-
Concept introduction: A process through which, an unstable nuclide loses its energy due to excess of protons or neutrons is known as radioactive decay. The cause of instability of a nuclide is its inefficiency in holding the nucleus together. Decay constant is the quantity that expresses the rate of decrease of number of atoms of a radioactive element per second. Half-life of radioactive sample is defined as the time required for the number of nuclides to reach half of the original value.
The decay constant can be calculated by the formula given below.
The time of decay can be calculated by the formula given below,
To determine: The value of decay constant in
(b)
Interpretation: Half-life of copper-
Concept introduction: A process through which, an unstable nuclide loses its energy due to excess of protons or neutrons is known as radioactive decay. The cause of instability of a nuclide is its inefficiency in holding the nucleus together. Decay constant is the quantity that expresses the rate of decrease of number of atoms of a radioactive element per second. Half-life of radioactive sample is defined as the time required for the number of nuclides to reach half of the original value.
The decay constant can be calculated by the formula given below.
The time of decay can be calculated by the formula given below,
To determine: The number of decay events in the first second.
(c)
Interpretation: Time in which one have to do the experiment of measuring radioactivity of copper-
Concept introduction: A process through which, an unstable nuclide loses its energy due to excess of protons or neutrons is known as radioactive decay. The cause of instability of a nuclide is its inefficiency in holding the nucleus together. Decay constant is the quantity that expresses the rate of decrease of number of atoms of a radioactive element per second. Half-life of radioactive sample is defined as the time required for the number of nuclides to reach half of the original value.
The decay constant can be calculated by the formula given below.
The time of decay can be calculated by the formula given below,
To determine: The time for which the given experiment is to be done so that the radioactivity does not fall below
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Chapter 18 Solutions
Bundle: Chemistry: An Atoms First Approach, Loose-leaf Version, 2nd + OWLv2 with Student Solutions Manual, 4 terms (24 months) Printed Access Card
- Nonearrow_forwardWhich one? Ca2^- Na2^+ Si2^+ Mg2^- AI2^-arrow_forwardIn general, which is more polar, the stationary phase or the mobile phase? The stationary phase is always more polar The mobile phase is always more polar It depends on our choices for both stationary and mobile phase Their polarity doesn't really matter so we never consider itarrow_forward
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