Principles of Decay

#

Answer

Page & Hints

1

B

p. 37

2

A

3

B

4

A

p. 39; convert hrs to mins for t

5

C

%= A/A_o = e^-lt X 100

6

C

p. 39; t = -24

7

B

T = -21

8

B

9

D

Use 1/T_e = 1/T_p + 1/T_b and solve for 1/T_b lastly take recriprocal of 1/T_b

10

F F ? F

IC only takes 142 keV Tc99m to 140 keV Tc99m not to Tc99c