元素週期表
| 族→ | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 電子層 | 0族電子數 | |
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| 週期↓ | IA | VIIIA （0） |
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| 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 |
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| 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 |
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| 3 | 11 Na 鈉 22.99 |
12 Mg 鎂 24.31 |
III B | IV B | V B | VI B | VII B | VIII B |
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 |
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| 4 | 19 K 鉀 39.1 |
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 126.7 |
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 Uut (284.2) |
114 Fl 鈇 (289.2) |
115 Uup (288.2) |
116 Lv 鉝 (293.2) |
117 Uus (294.2) |
118 Uuo (294.2) |
Q P O N M L K |
8 18 32 32 18 8 2 |
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| 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 |
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| 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) |
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圖解：
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