Find the activity A of a sample containing 4E-6 g of 60/27 Co (T1/2= 5.27 years). (Use 59.93 u as the mass of 60/27 Co.) Number of 60/27Co nuclei: A)4.02E16 B)9.03E33 C)9.03E36 D)4.02E19 Radioactive decay constant: A)2.41E8 B)0.132 C)4.15E-9 D)7.60 Given A(t)=A0exp(−λt), what are the units of the radioactive decay constant? A)sec/decay B)kg/decay C)decays/sec D)decays/kg
Find the activity A of a sample containing 4E-6 g of 60/27 Co (T1/2= 5.27 years). (Use 59.93 u as the mass of 60/27 Co.) Number of 60/27Co nuclei: A)4.02E16 B)9.03E33 C)9.03E36 D)4.02E19 Radioactive decay constant: A)2.41E8 B)0.132 C)4.15E-9 D)7.60 Given A(t)=A0exp(−λt), what are the units of the radioactive decay constant? A)sec/decay B)kg/decay C)decays/sec D)decays/kg
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Find the activity A of a sample containing 4E-6 g of 60/27 Co (T1/2= 5.27 years). (Use 59.93 u as the mass of 60/27 Co.)
Number of 60/27Co nuclei:
A)4.02E16
B)9.03E33
C)9.03E36
D)4.02E19
Radioactive decay constant:
A)2.41E8
B)0.132
C)4.15E-9
D)7.60
Given A(t)=A0exp(−λt), what are the units of the radioactive decay constant?
A)sec/decay
B)kg/decay
C)decays/sec
D)decays/kg
Activity in curies:
A)4.51E-3 Ci
B)8.26E9 Ci
C)1.43E8 Ci
D)4.51 Ci
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