Answers to selected problems
Chapter 38 Answers
C.1 A small fraction were deflected from the gold foil.
C.3 (a)^12 C and^14 C(^14) O and (^16) O
(b)^12 C and^14 O
(^14) C and (^16) O
(c)^12 C and^14 C
(^14) O and (^16) O
C.5 Electric (Coulomb) attraction
C.7 No
Answers vary
C.9 Nuclear fusion
3.1 19 electrons
3.3 (a) 40 is the mass number
(b) 20 protons
(c) 20 neutrons
(d) 18 electrons
6.1 64
7.1 1.8e2 m
8.1 206
9.1 4.54eí12 J
13.1 2.96eí11 J
14.1 (a) 4 hydrogen atoms
(b) 4.62eí29 kg
15.1 (a) Decrease
(b) 1.3eí29 kg
15.3 One alpha and two negative beta particle(s)
15.5 Leadí 206
17.1 6.25 percent
18.1 5730 years
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