(a) Neutron activation of sodium, which is 100% 23 Na, produces 24 Na, which is used in...
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(a) Neutron activation of sodium, which is 100% 23Na, produces 24Na, which is used in some heart scans, as seen in Table 32.1. The equation for the reaction is 
Find its energy output, given the mass of 24Na is 23.990962 u.
(b) What mass of 24Na produces the needed 5.0-mCi activity, given its half-life is 15.0 h?
Data from Table 32.1
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