族 →
↓ 周期
1IA2IIA3IIIB4IVB5VB6VIB7VIIB8VIIIB9VIIIB10VIIIB11IB12IIB13IIIA14IVA15VA16VIA17VIIA18VIIIA
1
1
H
1.00794
发现时间
熔点
沸点
每层电子排布
电子排布
状态
s
p
d
f
2
He
4.002602
2
3
Li
6.941
4
Be
9.012182
5
B
10.811
6
C
12.0107
7
N
14.0067
8
O
15.9994
9
F
18.9984032
10
Ne
20.1797
3
11
Na
22.98976928
12
Mg
24.305
13
Al
26.9815386
14
Si
28.0855
15
P
30.973762
16
S
32.065
17
Cl
35.453
18
Ar
39.948
4
19
K
39.0983
20
Ca
40.078
21
Sc
44.955912
22
Ti
47.867
23
V
50.9415
24
Cr
51.9961
25
Mn
54.938045
26
Fe
55.845
27
Co
58.933195
28
Ni
58.6934
29
Cu
63.546
30
Zn
65.38
31
Ga
69.723
32
Ge
72.63
33
As
74.9216
34
Se
78.96
35
Br
79.904
36
Kr
83.798
5
37
Rb
85.4678
38
Sr
87.62
39
Y
88.90585
40
Zr
91.224
41
Nb
92.90638
42
Mo
95.96
43
Tc
[98]
44
Ru
101.07
45
Rh
102.9055
46
Pd
106.42
47
Ag
107.8682
48
Cd
112.411
49
In
114.818
50
Sn
118.71
51
Sb
121.76
52
Te
127.6
53
I
126.90447
54
Xe
131.293
6
55
Cs
132.9054519
56
Ba
137.327
*
72
Hf
178.49
73
Ta
180.94788
74
W
183.84
75
Re
186.207
76
Os
190.23
77
Ir
192.217
78
Pt
195.084
79
Au
196.966569
80
Hg
200.59
81
Tl
204.3833
82
Pb
207.2
83
Bi
208.9804
84
Po
[210]
85
At
[210]
86
Rn
[222]
7
87
Fr
[223]
88
Ra
[226]
**
104
Rf
𬬻
[267]
105
Db
𬭊
[268]
106
Sg
𬭳
[269]
107
Bh
𬭛
[270]
108
Hs
𬭶
[269]
109
Mt
[278]
110
Ds
𫟼
[281]
111
Rg
𬬭
[281]
112
Cn
[285]
113
Nh
[286]
114
Fl
𫓧
[289]
115
Mc
[288]
116
Lv
𫟷
[293]
117
Ts
[294]
118
Og
[294]
* 镧系元素
57
La
138.90547
58
Ce
140.116
59
Pr
140.90765
60
Nd
144.242
61
Pm
[145]
62
Sm
150.36
63
Eu
151.964
64
Gd
157.25
65
Tb
158.92535
66
Dy
162.5
67
Ho
164.93032
68
Er
167.259
69
Tm
168.93421
70
Yb
173.054
71
Lu
174.9668
** 锕系元素
89
Ac
[227]
90
Th
232.03806
91
Pa
231.03588
92
U
238.02891
93
Np
[237]
94
Pu
[244]
95
Am
[243]
96
Cm
[247]
97
Bk
[247]
98
Cf
[251]
99
Es
[252]
100
Fm
[257]
101
Md
[258]
102
No
[259]
103
Lr
[262]
碱金属
碱土金属
过渡金属
弱金属
非金属
准金属
卤素
稀有气体
镧系元素
锕系元素
1IA
2IIA
3IIIB
4IVB
5VB
6VIB
7VIIB
8VIIIB
9VIIIB
10VIIIB
11IB
12IIB
13IIIA
14IVA
15VA
16VIA
17VIIA
18VIIIA
1
2
3
4
5
6
7
1
H
1.00794
2
He
4.002602
3
Li
6.941
4
Be
9.012182
5
B
10.811
6
C
12.0107
7
N
14.0067
8
O
15.9994
9
F
18.9984032
10
Ne
20.1797
11
Na
22.98976928
12
Mg
24.305
13
Al
26.9815386
14
Si
28.0855
15
P
30.973762
16
S
32.065
17
Cl
35.453
18
Ar
39.948
19
K
39.0983
20
Ca
40.078
21
Sc
44.955912
22
Ti
47.867
23
V
50.9415
24
Cr
51.9961
25
Mn
54.938045
26
Fe
55.845
27
Co
58.933195
28
Ni
58.6934
29
Cu
63.546
30
Zn
65.38
31
Ga
69.723
32
Ge
72.63
33
As
74.9216
34
Se
78.96
35
Br
79.904
36
Kr
83.798
37
Rb
85.4678
38
Sr
87.62
39
Y
88.90585
40
Zr
91.224
41
Nb
92.90638
42
Mo
95.96
43
Tc
[98]
44
Ru
101.07
45
Rh
102.9055
46
Pd
106.42
47
Ag
107.8682
48
Cd
112.411
49
In
114.818
50
Sn
118.71
51
Sb
121.76
52
Te
127.6
53
I
126.90447
54
Xe
131.293
55
Cs
132.9054519
56
Ba
137.327
57
La
138.90547
58
Ce
140.116
59
Pr
140.90765
60
Nd
144.242
61
Pm
[145]
62
Sm
150.36
63
Eu
151.964
64
Gd
157.25
65
Tb
158.92535
66
Dy
162.5
67
Ho
164.93032
68
Er
167.259
69
Tm
168.93421
70
Yb
173.054
71
Lu
174.9668
72
Hf
178.49
73
Ta
180.94788
74
W
183.84
75
Re
186.207
76
Os
190.23
77
Ir
192.217
78
Pt
195.084
79
Au
196.966569
80
Hg
200.59
81
Tl
204.3833
82
Pb
207.2
83
Bi
208.9804
84
Po
[210]
85
At
[210]
86
Rn
[222]
87
Fr
[223]
88
Ra
[226]
89
Ac
[227]
90
Th
232.03806
91
Pa
231.03588
92
U
238.02891
93
Np
[237]
94
Pu
[244]
95
Am
[243]
96
Cm
[247]
97
Bk
[247]
98
Cf
[251]
99
Es
[252]
100
Fm
[257]
101
Md
[258]
102
No
[259]
103
Lr
[262]
104
Rf
𬬻
[267]
105
Db
𬭊
[268]
106
Sg
𬭳
[269]
107
Bh
𬭛
[270]
108
Hs
𬭶
[269]
109
Mt
[278]
110
Ds
𫟼
[281]
111
Rg
𬬭
[281]
112
Cn
[285]
113
Nh
[286]
114
Fl
𫓧
[289]
115
Mc
[288]
116
Lv
𫟷
[293]
117
Ts
[294]
118
Og
[294]