NUCLEAR REACTIONS Zinc-62 decays with a half-life of 9.186 hours. 1. Write the balanced nuclear reaction of Zn-62 as it undergoes electron capture. (in your solution sheet) 2. Determine the decay constant of the radioactive decay of Zn-62. 3. How long does it take for a sample of Zn-62 to decay to 5.00 % of its original mass? After 12.80 days, a radioactive nuclide has passed through exactly five half-lives. The initial amount of the radioactive nuclide is 29.600 grams. 1. Compute for the remaining amount (in grams) of the radioactive nuclide after the given time. 2. Calculate the rate constant (in day) of the decay of the radioactive nuclide.

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Chapter10: Radioactivity And Nuclear Processes
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18
H
1.00e
"Values of atomic weights are based on the Atomic
Weights of the Elements 1995 published by IUPAC
13 14 15
Не
4.003
16
17
10
Li
Be
6.941 9.012
N
16.00 19.00 20.19
F
Ne
10.01 12.01 14.01
11
12
13
14
15
16
17
18
Na
Mg
Al
Si
P
CI
Ar
3
4
5
6
10 11 12
22.99 24.31
26.99 20.09 30.97 32.07 35.45 29.95
20
21
22
24
25
26
27
31
32
Ge
23
28
29
30
33
34
35
36
Co
Ni
39.10 40.08 44.96 47.87 50.94 52.00 54.94 55.85 58.93 58.69 63.55 65.39 69.72 72.61 74.92 78.95 79.90 83.80
K
Са
Sc
Ti
V
Cr
Mn
Fe
Cu
Zn
Ga
As
Se
Br
Kr
53
43
To
85.47 87.62 88.91 | 91.2292.91 95.94| (98)
38
39
40
41
42
44
46
40
50
51
52
54
Rb
Sr
Y
Zr
Nb
Mo
Ru
Rh
Pd
Ag
Cd
In
Sn
Sb
Te
I
Xe
101.1 102.9 106.4 107.9 112.4 114.8 118.7 121.8 127.5 126.9 131.3
55
Cs
57
La
72
Hf
73
Ta
74
75
Re
76
Os
70
Pt
79
Au
83
Bi
55
84
Ва
Ir
Hg
TI
Pb
Po
At
Rn
132.9 137.3 138.9 178.5 180.9 183.8| 186.2 190.2 192.2 195.1| 197.0 200.6 204.4 207.2 209.0 (209) (210) | (222)
104
T05
107
109
110
111
Sg
(223) (226) e) (261) 2 c263)L262) (265) L265) (269) e2)
Fr
Ra
Ac+
Rf
Db
Bh
Hs
Mt
Ds
Rg
58
71
Lu
140.1 140.9 144.2 (145) 150.4 152.0 157.3 158.9 162.5 164.9 167.3 168.9 173.0 175.0
59
60
Nd
61
62
63
64
65
66
67
68
69
70
Ce
Pr
Pm
Sm
Eu
Gd
Tb
Dy
Но
Er
Tm
Yb
"Lanthanides
96
Am Cm
232.0 231.0 238.0 (237) (244) (243) (247) (247) (251) (252) (257) (258) (259) (262)
90
Th
91
92
93
94
95
97
99
100
102
103
Lr
Ра
Np
Pu
Bk
Cf
Es
Fm
Md
No
*Actinides
Transcribed Image Text:18 H 1.00e "Values of atomic weights are based on the Atomic Weights of the Elements 1995 published by IUPAC 13 14 15 Не 4.003 16 17 10 Li Be 6.941 9.012 N 16.00 19.00 20.19 F Ne 10.01 12.01 14.01 11 12 13 14 15 16 17 18 Na Mg Al Si P CI Ar 3 4 5 6 10 11 12 22.99 24.31 26.99 20.09 30.97 32.07 35.45 29.95 20 21 22 24 25 26 27 31 32 Ge 23 28 29 30 33 34 35 36 Co Ni 39.10 40.08 44.96 47.87 50.94 52.00 54.94 55.85 58.93 58.69 63.55 65.39 69.72 72.61 74.92 78.95 79.90 83.80 K Са Sc Ti V Cr Mn Fe Cu Zn Ga As Se Br Kr 53 43 To 85.47 87.62 88.91 | 91.2292.91 95.94| (98) 38 39 40 41 42 44 46 40 50 51 52 54 Rb Sr Y Zr Nb Mo Ru Rh Pd Ag Cd In Sn Sb Te I Xe 101.1 102.9 106.4 107.9 112.4 114.8 118.7 121.8 127.5 126.9 131.3 55 Cs 57 La 72 Hf 73 Ta 74 75 Re 76 Os 70 Pt 79 Au 83 Bi 55 84 Ва Ir Hg TI Pb Po At Rn 132.9 137.3 138.9 178.5 180.9 183.8| 186.2 190.2 192.2 195.1| 197.0 200.6 204.4 207.2 209.0 (209) (210) | (222) 104 T05 107 109 110 111 Sg (223) (226) e) (261) 2 c263)L262) (265) L265) (269) e2) Fr Ra Ac+ Rf Db Bh Hs Mt Ds Rg 58 71 Lu 140.1 140.9 144.2 (145) 150.4 152.0 157.3 158.9 162.5 164.9 167.3 168.9 173.0 175.0 59 60 Nd 61 62 63 64 65 66 67 68 69 70 Ce Pr Pm Sm Eu Gd Tb Dy Но Er Tm Yb "Lanthanides 96 Am Cm 232.0 231.0 238.0 (237) (244) (243) (247) (247) (251) (252) (257) (258) (259) (262) 90 Th 91 92 93 94 95 97 99 100 102 103 Lr Ра Np Pu Bk Cf Es Fm Md No *Actinides
NUCLEAR REACTIONS
Zinc-62 decays with a half-life of 9.186 hours.
1. Write the balanced nuclear reaction of Zn-62 as it undergoes electron capture. (in your solution sheet)
2. Determine the decay constant of the radioactive decay of Zn-62.
3. How long does it take for a sample of Zn-62 to decay to 5.00 % of its original mass?
After 12.80 days, a radioactive nuclide has passed through exactly five half-lives. The initial amount of the
radioactive nuclide is 29.600 grams.
1. Compute for the remaining amount (in grams) of the radioactive nuclide after the given time.
2. Calculate the rate constant (in day) of the decay of the radioactive nuclide.
Transcribed Image Text:NUCLEAR REACTIONS Zinc-62 decays with a half-life of 9.186 hours. 1. Write the balanced nuclear reaction of Zn-62 as it undergoes electron capture. (in your solution sheet) 2. Determine the decay constant of the radioactive decay of Zn-62. 3. How long does it take for a sample of Zn-62 to decay to 5.00 % of its original mass? After 12.80 days, a radioactive nuclide has passed through exactly five half-lives. The initial amount of the radioactive nuclide is 29.600 grams. 1. Compute for the remaining amount (in grams) of the radioactive nuclide after the given time. 2. Calculate the rate constant (in day) of the decay of the radioactive nuclide.
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