Nuclear medicine answers
(b) λt½ = 0.693 so λ = 0.693 ÷ 6.01 = 0.115 hλt = ln (No/N) so 0.115 x 4.50 = ln (10.0/N) where N = mass remaining after 4.50 hoursln (10.0/N) = 0.5175 so N = 10 ÷ 1.678 = 5.96 mg (c) Any three from: short radioactive half-live (6h), short biological half-life (1 day), forms saltsand complexes (so easy to administer), produces gamma radiation, radiation can bedetected by X-ray equipment, decay product (Tc-90) is a...