砒素
는 自然에서 1가지의
安定 同位 元素
(
75
As)로만 構成되어 있으며, 이 밖에 32가지의
放射性 同位 元素
와 最小 10가지의
異性質核
이 發見되어 있다. 放射性 同位 元素들 中 가장 安定한 것은
73
As으로,
半減期
는 約 80日이다.
砒素의 標準 原子量은 74.92160(2)
u
이다.
票
[
編輯
]
核種
記號
|
Z(
p
)
|
N(
n
)
|
同位 元素 質量 (u)
|
半減期
|
崩壞
方式
[1]
|
崩壞
生成物
[n 1]
|
核
스핀
|
典型的
同位 元素
構成比
(몰 分率)
|
自然的
構成比
變動 範圍
(몰 分率)
|
| 들뜬 에너지
|
| 60
As
|
33
|
27
|
59.99313(64)#
|
|
p
|
59
Ge
|
5+#
|
|
|
| 61
As
|
33
|
28
|
60.98062(64)#
|
|
p
|
60
Ge
|
3/2-#
|
|
|
| 62
As
|
33
|
29
|
61.97320(32)#
|
|
p
|
61
Ge
|
1+#
|
|
|
| 63
As
|
33
|
30
|
62.96369(54)#
|
|
p
|
62
Ge
|
(3/2-)#
|
|
|
| 64
As
|
33
|
31
|
63.95757(38)#
|
40(30) ms
[18(+43-7) ms]
|
β
+
|
64
Ge
|
0+#
|
|
|
| 65
As
|
33
|
32
|
64.94956(32)#
|
170(30) ms
|
β
+
|
65
Ge
|
3/2-#
|
|
|
| 66
As
|
33
|
33
|
65.94471(73)
|
95.77(23) ms
|
β
+
|
66
Ge
|
(0+)
|
|
|
| 66m1
As
|
1356.70(17) keV
|
1.1(1) μs
|
|
|
(5+)
|
|
|
| 66m2
As
|
3023.9(3) keV
|
8.2(5) μs
|
|
|
(9+)
|
|
|
| 67
As
|
33
|
34
|
66.93919(11)
|
42.5(12) s
|
β
+
|
67
Ge
|
(5/2-)
|
|
|
| 68
As
|
33
|
35
|
67.93677(5)
|
151.6(8) s
|
β
+
|
68
Ge
|
3+
|
|
|
| 68m
As
|
425.21(16) keV
|
111(20) ns
[?107(+23-16) ns]
|
|
|
1+
|
|
|
| 69
As
|
33
|
36
|
68.93227(3)
|
15.2(2) min
|
β
+
|
69
Ge
|
5/2-
|
|
|
| 70
As
|
33
|
37
|
69.93092(5)
|
52.6(3) min
|
β
+
|
70
Ge
|
4(+#)
|
|
|
| 70m
As
|
32.008(23) keV
|
96(3) μs
|
|
|
2(+)
|
|
|
| 71
As
|
33
|
38
|
70.927112(5)
|
65.28(15) h
|
β
+
|
71
Ge
|
5/2-
|
|
|
| 72
As
|
33
|
39
|
71.926752(5)
|
26.0(1) h
|
β
+
|
72
Ge
|
2-
|
|
|
| 73
As
|
33
|
40
|
72.923825(4)
|
80.30(6) d
|
ε
|
73
Ge
|
3/2-
|
|
|
| 74
As
|
33
|
41
|
73.9239287(25)
|
17.77(2) d
|
β
+
(66%)
|
74
Ge
|
2-
|
|
|
| β
-
(34%)
|
74
Se
|
| 75
As
|
33
|
42
|
74.9215965(20)
|
安定
|
3/2-
|
1.0000
|
|
| 75m
As
|
303.9241(7) keV
|
17.62(23) ms
|
|
|
9/2+
|
|
|
| 76
As
|
33
|
43
|
75.922394(2)
|
1.0942(7) d
|
β
-
(99.98%)
|
76
Se
|
2-
|
|
|
| ε (.02%)
|
76
Ge
|
| 76m
As
|
44.425(1) keV
|
1.84(6) μs
|
|
|
(1)+
|
|
|
| 77
As
|
33
|
44
|
76.9206473(25)
|
38.83(5) h
|
β
-
|
77m
Se
|
3/2-
|
|
|
| 77m
As
|
475.443(16) keV
|
114.0(25) μs
|
|
|
9/2+
|
|
|
| 78
As
|
33
|
45
|
77.921827(11)
|
90.7(2) min
|
β
-
|
78
Se
|
2-
|
|
|
| 79
As
|
33
|
46
|
78.920948(6)
|
9.01(15) min
|
β
-
|
79m
Se
|
3/2-
|
|
|
| 79m
As
|
772.81(6) keV
|
1.21(1) μs
|
|
|
(9/2)+
|
|
|
| 80
As
|
33
|
47
|
79.922534(25)
|
15.2(2) s
|
β
-
|
80
Se
|
1+
|
|
|
| 81
As
|
33
|
48
|
80.922132(6)
|
33.3(8) s
|
β
-
|
81m
Se
|
3/2-
|
|
|
| 82
As
|
33
|
49
|
81.92450(21)
|
19.1(5) s
|
β
-
|
82
Se
|
(1+)
|
|
|
| 82m
As
|
250(200) keV
|
13.6(4) s
|
β
-
|
82
Se
|
(5-)
|
|
|
| 83
As
|
33
|
50
|
82.92498(24)
|
13.4(3) s
|
β
-
|
83m
Se
|
3/2-#
|
|
|
| 84
As
|
33
|
51
|
83.92906(32)#
|
4.02(3) s
|
β
-
(99.721%)
|
84
Se
|
(3)(+#)
|
|
|
| β
-
,
n
(.029%)
|
83
Se
|
| 84m
As
|
0(100)# keV
|
650(150) ms
|
|
|
|
|
|
| 85
As
|
33
|
52
|
84.93202(21)#
|
2.021(10) s
|
β
-
, n (59.4%)
|
84
Se
|
(3/2-)#
|
|
|
| β
-
(40.6%)
|
85
Se
|
| 86
As
|
33
|
53
|
85.93650(32)#
|
0.945(8) s
|
β
-
(67%)
|
86
Se
|
|
|
|
| β
-
, n (33%)
|
85
Se
|
| 87
As
|
33
|
54
|
86.93990(32)#
|
0.56(8) s
|
β
-
(84.6%)
|
87
Se
|
3/2-#
|
|
|
| β
-
, n (15.4%)
|
86
Se
|
| 88
As
|
33
|
55
|
87.94494(54)#
|
300# ms
[>300 ns]
|
β
-
|
88
Se
|
|
|
|
| β
-
, n
|
87
Se
|
| 89
As
|
33
|
56
|
88.94939(54)#
|
200# ms
[>300 ns]
|
β
-
|
89
Se
|
3/2-#
|
|
|
| 90
As
|
33
|
57
|
89.95550(86)#
|
80# ms
[>300 ns]
|
|
|
|
|
|
| 91
As
|
33
|
58
|
90.96043(97)#
|
50# ms
[>300 ns]
|
|
|
3/2-#
|
|
|
| 92
As
|
33
|
59
|
91.96680(97)#
|
30# ms
[>300 ns]
|
|
|
|
|
|
各州
[
編輯
]
- 內容主
- ↑
굵은 글꼴은 安定 同位 元素, 굵은 이탤릭체 글꼴은 거의 安靜하여 半減期가
宇宙의 나이
보다 긴 元素
