Difference between revisions of "Promethium"

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<nowiki>{{Element | name=Promethium | symbol=Pm | anumber=61 | amass=145 amu | state=Solid | class=Metallic | cstructure=Hexagonal| color=Silvery / Metallic | date=1945 | discname=J.A. Marinsky, L.E. Glendenin and C.D. Coryell | origname=From Prometheus who stole the fire of the sky and gave it to mankind. | uses=Used in highly specialized miniature batteries. | obtained=All the promethium originally present when the Earth formed has disappeared due to radioactive decay. Only very small trace amounts are found in uranium ores as a product of nuclear fission. }}
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{{Element | name=Promethium | symbol=Pm | anumber=61 | amass=145 amu | state=Solid | class=Metallic | cstructure=Hexagonal| color=Silvery / Metallic | date=1945 | discname=J.A. Marinsky, L.E. Glendenin and C.D. Coryell | origname=From Prometheus who stole the fire of the sky and gave it to mankind. | uses=Used in highly specialized miniature batteries. | obtained=All the promethium originally present when the Earth formed has disappeared due to radioactive decay. Only very small trace amounts are found in uranium ores as a product of nuclear fission. }}
  
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'''Promethium''' is not known to exist in the earth's crust but a sample was extracted during processing of [[nuclear reactor]] fuel waste in 1963. Promethium salts glow in the dark because they are [[radioactive]]. Promethium is one of the [[rare earth elements]].<ref>https://www.webelements.com/promethium/</ref>
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==References==
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{{reflist}}
  
 
[[Category:Elements]]
 
[[Category:Elements]]
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[[Category:Metals]]</nowiki>
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[[Category:Metals]]
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{{Periodic table}}

Latest revision as of 00:44, December 8, 2018

Promethium
Properties
Atomic symbol Pm
Atomic number 61
Classification Metallic
Atomic mass 145 amu
Other Information
Date of discovery 1945
Name of discoverer J.A. Marinsky, L.E. Glendenin and C.D. Coryell
Name origin From Prometheus who stole the fire of the sky and gave it to mankind.
Uses Used in highly specialized miniature batteries.
Obtained from All the promethium originally present when the Earth formed has disappeared due to radioactive decay. Only very small trace amounts are found in uranium ores as a product of nuclear fission.


Promethium is not known to exist in the earth's crust but a sample was extracted during processing of nuclear reactor fuel waste in 1963. Promethium salts glow in the dark because they are radioactive. Promethium is one of the rare earth elements.[1]

References

  1. ↑ https://www.webelements.com/promethium/
Periodic Table of the Elements
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
1
H
1.008
2
He
4.003
3
Li
6.939
4
Be
9.0122
5
B
10.811
6
C
12.011
7
N
14.007
8
O
15.999
9
F
18.998
10
Ne
10.183
11
Na
22.99
12
Mg
24.312
13
Al
26.982
14
Si
28.086
15
P
30.974
16
S
32.064
17
Cl
35.453
18
Ar
39.948
19
K
39.102
20
Ca
40.08
21
Sc
44.956
22
Ti
47.9
23
V
50.942
24
Cr
51.996
25
Mn
54.938
26
Fe
55.847
27
Co
58.933
28
Ni
58.71
29
Cu
63.546
30
Zn
65.37
31
Ga
69.72
32
Ge
72.59
33
As
74.922
34
Se
78.96
35
Br
79.904
36
Kr
83.8
37
Rb
85.47
38
Sr
87.62
39
Y
88.905
40
Zr
91.22
41
Nb
92.906
42
Mo
95.94
43
Tc
[97]
44
Ru
101.07
45
Rh
102.91
46
Pd
106.4
47
Ag
107.87
48
Cd
112.4
49
In
114.82
50
Sn
118.69
51
Sb
121.75
52
Te
127.6
53
I
126.9
54
Xe
131.3
55
Cs
132.91
56
Ba
137.34
57*
La
138.91
72
Hf
178.49
73
Ta
180.95
74
W
183.85
75
Re
186.2
76
Os
190.2
77
Ir
192.2
78
Pt
195.09
79
Au
196.97
80
Hg
200.59
81
Tl
204.37
82
Pb
207.19
83
Bi
208.98
84
Po
210
85
At
210
86
Rn
222
87
Fr
215
88
Ra
226.03
89**
Ac
227.03
104
Rf
[261]
105
Db
[262]
106
Sg
[266]
107
Bh
[264]
108
Hs
[265]
109
Mt
[268]
110
Dt
[271]
111
Rg
[272]
112
Cn
[277]
113
Nh
[284]
114
Fv
[289]
115
Mc
[288]
116
Lv
[292]
117
Ts
[293]
118
Og
[294]
 
*Lanthanides
58
Ce
140.12
59
Pr
140.91
60
Nd
144.24
61
Pm
145
62
Sm
150.35
63
Eu
151.96
64
Gd
157.25
65
Tb
158.92
66
Dy
162.5
67
Ho
164.93
68
Er
167.26
69
Tm
168.93
70
Yb
173.04
71
Lu
174.97
 
**Actinides
90
Th
232.04
91
Pa
231
92
U
238.03
93
Np
237.05
94
Pu
239.05
95
Am
241.06
96
Cm
244.06
97
Bk
249.08
98
Cf
252.08
99
Es
252.08
100
Fm
257.1
101
Md
258.1
102
No
259.1
103
Lr
262.11
 
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