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9BBWMJ/元素週期表
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電子層
0族電子數
週期↓
I
A
VIII
A
(0)
1
1
H
氫
1.008
II
A
III
A
IV
A
V
A
VI
A
VII
A
2
He
氦
4.003
K
2
2
3
Li
鋰
6.941
4
Be
鈹
9.012
5
B
硼
10.81
6
C
碳
12.01
7
N
氮
14.01
8
O
氧
16.00
9
F
氟
19.00
10
Ne
氖
20.18
L
K
8
2
3
11
Na
鈉
22.99
12
Mg
鎂
24.31
III
B
IV
B
V
B
VI
B
VII
B
VIII
B
⏞
{\displaystyle \overbrace {\qquad \qquad \qquad } }
I
B
II
B
13
Al
鋁
26.98
14
Si
矽
28.09
15
P
磷
30.97
16
S
硫
32.07
17
Cl
氯
35.45
18
Ar
氬
39.95
M
L
K
8
8
2
4
19
K
鉀
39.10
20
Ca
鈣
40.08
21
Sc
鈧
44.96
22
Ti
鈦
47.88
23
V
釩
50.94
24
Cr
鉻
52.00
25
Mn
錳
54.94
26
Fe
鐵
55.85
27
Co
鈷
58.93
28
Ni
鎳
58.69
29
Cu
銅
63.55
30
Zn
鋅
65.39
31
Ga
鎵
69.72
32
Ge
鍺
72.59
33
As
砷
74.92
34
Se
硒
78.96
35
Br
溴
79.90
36
Kr
氪
83.80
N
M
L
K
8
18
8
2
5
37
Rb
銣
85.47
38
Sr
鍶
87.62
39
Y
釔
88.91
40
Zr
鋯
91.22
41
Nb
鈮
92.91
42
Mo
鉬
95.94
43
Tc
鎝-
(97.91)
44
Ru
釕
101.1
45
Rh
銠
102.9
46
Pd
鈀
106.4
47
Ag
銀
107.9
48
Cd
鎘
112.4
49
In
銦
114.8
50
Sn
錫
118.7
51
Sb
銻
121.8
52
Te
碲
127.6
53
I
碘
126.9
54
Xe
氙
131.3
O
N
M
L
K
8
18
18
8
2
6
55
Cs
銫
132.9
56
Ba
鋇
137.3
57
-
71
鑭系
元素
72
Hf
鉿
178.5
73
Ta
鉭
180.9
74
W
鎢
183.9
75
Re
錸
186.2
76
Os
鋨
190.2
77
Ir
銥
192.2
78
Pt
鉑
195.1
79
Au
金
197.0
80
Hg
汞
200.6
81
Tl
鉈
204.4
82
Pb
鉛
207.2
83
Bi
鉍
209.0
84
Po
釙
(209.0)
85
At
砈
(210.0)
86
Rn
氡
(222.0)
P
O
N
M
L
K
8
18
32
18
8
2
7
87
Fr
鍅
(223.0)
88
Ra
鐳
(226.0)
89
-
103
錒系
元素
104
Rf
鑪
(265.1)
105
Db
𨧀
(268.1)
106
Sg
𨭎
(271.1)
107
Bh
𨨏
(270.1)
108
Hs
𨭆
(277.2)
109
Mt
䥑
(276.2)
110
Ds
鐽
(281.2)
111
Rg
錀
(280.2)
112
Cn
鎶
(285.2)
113
Nh
鉨
(284.2)
114
Fl
鈇
(289.2)
115
Mc
鏌
(288.2)
116
Lv
鉝
(293.2)
117
Ts
鿬(
)
(294.2)
118
Og
鿫(
)
(294.2)
Q
P
O
N
M
L
K
8
18
32
32
18
8
2
鑭系元素
57
La
鑭
138.9
58
Ce
鈰
140.1
59
Pr
鐠
140.9
60
Nd
釹
144.2
61
Pm
鉕
(144.9)
62
Sm
釤
150.4
63
Eu
銪
152.0
64
Gd
釓
157.3
65
Tb
鋱
158.9
66
Dy
鏑
162.5
67
Ho
鈥
164.9
68
Er
鉺
167.3
69
Tm
銩
168.9
70
Yb
鐿
173.0
71
Lu
鎦
175.0
錒系元素
89
Ac
錒
(227.0)
90
Th
釷
232.0
91
Pa
鏷
231.0
92
U
鈾
238.0
93
Np
錼
(237.1)
94
Pu
鈽
(244.1)
95
Am
鋂
(243.1)
96
Cm
鋦
(247.1)
97
Bk
鉳
(247.1)
98
Cf
鉲
(252.1)
99
Es
鑀
(252.1)
100
Fm
鐨
(257.1)
101
Md
鍆
(258.1)
102
No
鍩
(259.1)
103
Lr
鐒
(262.1)