(c) Given that radioactive cobalt-60 has a radioactive constant equal to 7.6 x 10 s', determine its half- life and how long would it take for the activity of a sample of cobalt-60 to reduce to 20 % of its original value ?

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Answer part c
Question Five
Use the periodic table provided and answer the following questions:
(a) Cesium Bromide (CsBr) exhibits predominantly ionic bonding. Cesium (Cs) has an atomic number of
55 while Bromine (Br) has an atomic number of 35. State the following:
(i)
The electron configuration for the Cesium ion (Cs") and the Bromine ion (Br).
(ii)
Which inert gases can the two ions above be associated to?
(b) Describe fully how an ionic bond is formed.
(c) Given that radioactive cobalt-60 has a radioactive constant equal to 7.6 x 10° s', determine its half-
life and how long would it take for the activity of a sample of cobalt-60 to reduce to 20 % of its
original value ?
Transcribed Image Text:Question Five Use the periodic table provided and answer the following questions: (a) Cesium Bromide (CsBr) exhibits predominantly ionic bonding. Cesium (Cs) has an atomic number of 55 while Bromine (Br) has an atomic number of 35. State the following: (i) The electron configuration for the Cesium ion (Cs") and the Bromine ion (Br). (ii) Which inert gases can the two ions above be associated to? (b) Describe fully how an ionic bond is formed. (c) Given that radioactive cobalt-60 has a radioactive constant equal to 7.6 x 10° s', determine its half- life and how long would it take for the activity of a sample of cobalt-60 to reduce to 20 % of its original value ?
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