Periodic Table
Interactive periodic table with detailed element information, physical and chemical properties, and historical data
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Metals
Alkali Metals
Alkaline Earth Metals
Transition Metals
Post-Transition Metals
双原子非金属
多原子非金属
Metalloids
Nonmetals
Noble Gases
Lanthanides
Actinides
Unknown
2
氦
He
4.0026
10
氖
Ne
20.1800
18
氩
Ar
39.9500
36
氪
Kr
83.7980
54
氙
Xe
131.29
57
镧
La
138.91
58
铈
Ce
140.12
59
镨
Pr
140.91
60
钕
Nd
144.24
61
钷
Pm
[145]
62
钐
Sm
150.36
63
铕
Eu
151.96
64
钆
Gd
157.25
65
铽
Tb
158.93
66
镝
Dy
162.50
67
钬
Ho
164.93
68
铒
Er
167.26
69
铥
Tm
168.93
70
镱
Yb
173.05
71
镥
Lu
174.97
86
氡
Rn
[222]
89
锕
Ac
[227]
90
钍
Th
232.04
91
镤
Pa
231.04
92
铀
U
238.03
93
镎
Np
[237]
94
鈽
Pu
[244]
95
镅
Am
[243]
96
锔
Cm
[247]
97
锫
Bk
[247]
98
锎
Cf
[251]
99
锿
Es
[252]
100
镄
Fm
[257]
101
钔
Md
[258]
102
锘
No
[259]
103
铹
Lr
[262]
117
Ts
[294]
118
Og
[294]
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