The radioactive nuclide 60Co as a half-life of 5.27 years. Calculate the mass (in g) of "Co that remains from a 0.75 g sample of the nuclide after 1.25 year has elapsed. Enter values only with 6 decimal places.
The radioactive nuclide 60Co as a half-life of 5.27 years. Calculate the mass (in g) of "Co that remains from a 0.75 g sample of the nuclide after 1.25 year has elapsed. Enter values only with 6 decimal places.
Chemistry for Today: General, Organic, and Biochemistry
9th Edition
ISBN:9781305960060
Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Publisher:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Chapter10: Radioactivity And Nuclear Processes
Section: Chapter Questions
Problem 10.14E
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Transcribed Image Text:The radioactive nuclide Co
as a half-life of 5.27 years. Calculate the mass (in g) of Co that remains from a 0.75 g sample of the nuclide after 1.25 year has elapsed.
Enter values only with 6 decimal places.
Transcribed Image Text:Periodic table of the elements
Alkali metals
Halogens
Alkaline-earth metals
Noble gases
group
1*
18
Rare-earth elements (21, 39, 57–71)
and lanthanoid elements (57-71 only)
Transition metals
1
1
H
Other metals
2
13
14
15
16
17
Не
Other nonmetals
Actinoid elements
6.
3
2
Li
4
7
8.
10
Ве
B
C
N
F
Ne
18
11
3
Na Mg
12
13
14
15
16
17
3
4 5 6 7 8 9
10
11
12
AI
Si
S
CI
Ar
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
4
K
Ca
Sc
Ti
V
Cr
Mn
Fe
Co
Ni
Cu
Zn
Ga
Ge
As
Se
Br
Kr
37
5
Rb
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
Sr
Y
Zr
Nb
Мо
Tc
Ru
Rh
Pd
Ag
Cd
Sn
Sb
Te
55
56
57
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
s Ba La Hf Ta w Re
Os Ir Pt
Pb Bi
Та
Au
Hg
TI
Ро
At
Rn
88
110
87
7
Fr
89
104
105
106
107
108
109
111
112
113
114
115
116
117
118
Ra
Ac
Rf
Db
Bh
Hs
Mt
Ds
Rg
Cn
Nh
Mc
Lv
Ts
Og
58
lanthanoid series 6
63
64
66
68
59
60
61
62
65
67
69
70
71
Се
Pr
Nd
Pm
Sm
Eu
Gd
Tb
Dy
Но
Er
Tm
Yb
Lu
90
actinoid series 7
92
93
96
99
100
101
91
94
95
97
98
102
103
Th
Ра
U
Pu
Am Cm
Bk
Cf
Es
Fm
Md
No
Lr
*Numbering system adopted by the International Union of Pure and Applied Chemistry (IUPAC).
© Encyclopædia Britannica, Inc.
19
LO
CO
period
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